{ "claims": [ { "claim": { "claim_id": "claim-access-convict-hiker-parking-map-point", "evidence_ids": [ "evidence-convict-hiker-parking-map-point" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "access-convict-hiker-parking", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "convict-hiker-parking-connector", "path": "geometry/v0/snapshots/eastern-sierra-access-connectors-20260925.geojson", "sha256": "bd479aa6c98a9ee32914499758ff0951e0730b025cc113a937e2a2f53e07c972" }, "latitude": 37.60014790176818, "longitude": -118.85384088423861, "navigation_grade": false, "provenance": "official_usfs_trail_endpoint", "source_feature_id": "{1E376791-F6EC-4A16-8996-31C6975B4A6E}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-access-convict-hiker-parking-map-point", "evidence_id": "evidence-convict-hiker-parking-map-point", "notes": "", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-access-connectors-20260925.geojson", "bd479aa6c98a9ee32914499758ff0951e0730b025cc113a937e2a2f53e07c972" ], "content": "The National Digital Trails service publishes the named CONVICT HIKER PARKING feature as a 0.44399712-mile unpaved-native trail. Its south endpoint exactly matches the shared endpoint of reviewed Convict Lake Loop segments 2 and 3.", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T19:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-access-upper-rock-creek-east-fork-map-point", "evidence_ids": [ "evidence-access-upper-rock-creek-east-fork-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "access-upper-rock-creek-east-fork", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "access-upper-rock-creek-east-fork", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.49270500638693, "longitude": -118.71750136887556, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{BD9384D8-3127-4D1D-B15C-3DC2412B3D5C}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-access-upper-rock-creek-east-fork-map-point", "evidence_id": "evidence-access-upper-rock-creek-east-fork-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-convict-hiker-parking-ordered-geometry", "evidence_ids": [ "evidence-convict-hiker-parking-route-geometry" ], "predicate": "ordered_route_geometry", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-convict-hiker-parking-connector", "temporal_scope": null, "value": { "distance_miles": 0.44399712, "distance_status": "known", "segment_ids": [ "route-segment-convict-hiker-parking-connector" ], "start_node_id": "access-convict-hiker-parking" } }, "evidence": [ { "claim_id": "claim-route-convict-hiker-parking-ordered-geometry", "evidence_id": "evidence-convict-hiker-parking-route-geometry", "notes": "", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-access-connectors-20260925.geojson", "bd479aa6c98a9ee32914499758ff0951e0730b025cc113a937e2a2f53e07c972" ], "content": "The National Digital Trails service publishes the named CONVICT HIKER PARKING feature as a 0.44399712-mile unpaved-native trail. Its south endpoint exactly matches the shared endpoint of reviewed Convict Lake Loop segments 2 and 3.", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T19:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-convict-lake-loop-dataset-profile", "evidence_ids": [ "evidence-route-convict-lake-loop-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-convict-lake-loop", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "one_way_distance_miles": 1.96900273 } }, "evidence": [ { "claim_id": "claim-route-convict-lake-loop-dataset-profile", "evidence_id": "evidence-route-convict-lake-loop-dataset-profile", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-fern-lake-june-dataset-profile", "evidence_ids": [ "evidence-route-fern-lake-june-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-fern-lake-june" ], "subject_id": "route-fern-lake-june", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "distance_disagreement_preserved": true, "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "one_way_distance_miles": 1.63727308, "published_guide_one_way_miles": 2.2 } }, "evidence": [ { "claim_id": "claim-route-fern-lake-june-dataset-profile", "evidence_id": "evidence-route-fern-lake-june-dataset-profile", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-heart-lake-mammoth-dataset-profile", "evidence_ids": [ "evidence-route-heart-lake-mammoth-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-heart-lake-mammoth" ], "subject_id": "route-heart-lake-mammoth", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "one_way_distance_miles": 1.05114655 } }, "evidence": [ { "claim_id": "claim-route-heart-lake-mammoth-dataset-profile", "evidence_id": "evidence-route-heart-lake-mammoth-dataset-profile", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-lamarck-lakes-dataset-profile", "evidence_ids": [ "evidence-route-lamarck-lakes-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-lamarck-lakes" ], "subject_id": "route-lamarck-lakes", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "one_way_distance_miles": 2.5316595 } }, "evidence": [ { "claim_id": "claim-route-lamarck-lakes-dataset-profile", "evidence_id": "evidence-route-lamarck-lakes-dataset-profile", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-mcgee-creek-beaver-pond-dataset-prefix", "evidence_ids": [ "evidence-route-mcgee-creek-beaver-pond-dataset-prefix" ], "predicate": "dataset_route_partial_topology", "spatial_scope_ids": [ "scope-route-mcgee-creek-beaver-pond" ], "subject_id": "route-mcgee-creek-beaver-pond", "temporal_scope": null, "value": { "bidirectional": true, "connected_prefix_distance_miles": 0.97791982, "connected_prefix_segment_ids": [ "route-segment-mcgee-pass-01", "route-segment-mcgee-pass-02", "route-segment-mcgee-pass-03", "route-segment-mcgee-pass-04", "route-segment-mcgee-pass-05", "route-segment-mcgee-pass-06" ], "destination_distance_one_way_miles": 3, "destination_distance_precision": "published rounded value", "remaining_distance_after_connected_prefix_miles": 2.02208018, "topology_status": "partial_destination_within_unsplit_source_feature", "unresolved_source_feature_id": "{F7E76514-1AD3-4846-AA9D-C28FDCCC2F86}" } }, "evidence": [ { "claim_id": "claim-route-mcgee-creek-beaver-pond-dataset-prefix", "evidence_id": "evidence-route-mcgee-creek-beaver-pond-dataset-prefix", "notes": "", "observation_id": "observation-usgs-mcgee-short-route-prefix-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson" ], "content": "The first six connected MCGEE PASS features form a 0.97791982-mile prefix from the McGee Creek trailhead. The county-published three-mile beaver-pond destination falls within the following 2.84525413-mile source feature, so the official feature cannot be assigned wholly to the short route and is not split without a source-backed pond coordinate.", "observation_id": "observation-usgs-mcgee-short-route-prefix-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T09:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-mcgee-creek-dataset-profile", "evidence_ids": [ "evidence-route-mcgee-creek-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-mcgee-creek", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "extent": "McGee Creek trailhead corridor to the dataset corridor endpoint toward McGee Pass", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "one_way_distance_miles": 14.25364769 } }, "evidence": [ { "claim_id": "claim-route-mcgee-creek-dataset-profile", "evidence_id": "evidence-route-mcgee-creek-dataset-profile", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-parker-lake-dataset-profile", "evidence_ids": [ "evidence-route-parker-lake-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-parker-lake" ], "subject_id": "route-parker-lake", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "one_way_distance_miles": 1.84699256 } }, "evidence": [ { "claim_id": "claim-route-parker-lake-dataset-profile", "evidence_id": "evidence-route-parker-lake-dataset-profile", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-piute-pass-dataset-profile", "evidence_ids": [ "evidence-route-piute-pass-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-piute-pass" ], "subject_id": "route-piute-pass", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "one_way_distance_miles": 4.73565051 } }, "evidence": [ { "claim_id": "claim-route-piute-pass-dataset-profile", "evidence_id": "evidence-route-piute-pass-dataset-profile", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-sabrina-blue-lake-dataset-profile", "evidence_ids": [ "evidence-route-sabrina-blue-lake-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-sabrina-blue-lake" ], "subject_id": "route-sabrina-blue-lake", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "one_way_distance_miles": 3.32316141 } }, "evidence": [ { "claim_id": "claim-route-sabrina-blue-lake-dataset-profile", "evidence_id": "evidence-route-sabrina-blue-lake-dataset-profile", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-convict-hiker-parking-connector", "evidence_ids": [ "evidence-convict-hiker-parking-connector" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-segment-convict-hiker-parking-connector", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{1E376791-F6EC-4A16-8996-31C6975B4A6E}", "dataset_feature_name": "CONVICT HIKER PARKING", "distance_miles": 0.44399712, "distance_status": "known", "end_coordinate": { "latitude": 37.594313472938715, "longitude": -118.85592573184694 }, "geometry_snapshot": { "feature_id": "convict-hiker-parking-connector", "path": "geometry/v0/snapshots/eastern-sierra-access-connectors-20260925.geojson", "sha256": "bd479aa6c98a9ee32914499758ff0951e0730b025cc113a937e2a2f53e07c972" }, "joins_route_node_id": "route-node-convict-lake-loop-02", "start_coordinate": { "latitude": 37.60014790176818, "longitude": -118.85384088423861 }, "surface": "unpaved_native" } }, "evidence": [ { "claim_id": "claim-route-segment-convict-hiker-parking-connector", "evidence_id": "evidence-convict-hiker-parking-connector", "notes": "", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-access-connectors-20260925.geojson", "bd479aa6c98a9ee32914499758ff0951e0730b025cc113a937e2a2f53e07c972" ], "content": "The National Digital Trails service publishes the named CONVICT HIKER PARKING feature as a 0.44399712-mile unpaved-native trail. Its south endpoint exactly matches the shared endpoint of reviewed Convict Lake Loop segments 2 and 3.", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T19:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-convict-lake-loop-01", "evidence_ids": [ "evidence-route-segment-convict-lake-loop-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-segment-convict-lake-loop-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{53DFF737-6342-48C7-BF01-418FFE3DFB23}", "dataset_feature_name": "CONVICT LAKE LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.041122040000000006, "distance_status": "known", "end_coordinate": { "latitude": 37.59507038047492, "longitude": -118.85349315027948 }, "geometry_snapshot": { "feature_id": "{53DFF737-6342-48C7-BF01-418FFE3DFB23}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5830", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.5950547846918, "longitude": -118.85276363557385 } } }, "evidence": [ { "claim_id": "claim-route-segment-convict-lake-loop-01", "evidence_id": "evidence-route-segment-convict-lake-loop-01", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-convict-lake-loop-02", "evidence_ids": [ "evidence-route-segment-convict-lake-loop-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-segment-convict-lake-loop-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{A5B32BDD-4414-4528-A8C6-CA291B26CE61}", "dataset_feature_name": "CONVICT LAKE LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.14486553000000002, "distance_status": "known", "end_coordinate": { "latitude": 37.594313472938715, "longitude": -118.85592573184694 }, "geometry_snapshot": { "feature_id": "{A5B32BDD-4414-4528-A8C6-CA291B26CE61}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5830", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.59507038047492, "longitude": -118.85349315027948 } } }, "evidence": [ { "claim_id": "claim-route-segment-convict-lake-loop-02", "evidence_id": "evidence-route-segment-convict-lake-loop-02", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-convict-lake-loop-03", "evidence_ids": [ "evidence-route-segment-convict-lake-loop-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-segment-convict-lake-loop-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{BA0FC189-FEC3-4F4F-88BA-C4C4ADFB6CC8}", "dataset_feature_name": "CONVICT LAKE LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.7182946400000001, "distance_status": "known", "end_coordinate": { "latitude": 37.58773640600552, "longitude": -118.86553319728223 }, "geometry_snapshot": { "feature_id": "{BA0FC189-FEC3-4F4F-88BA-C4C4ADFB6CC8}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5830", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.594313472938715, "longitude": -118.85592573184694 } } }, "evidence": [ { "claim_id": "claim-route-segment-convict-lake-loop-03", "evidence_id": "evidence-route-segment-convict-lake-loop-03", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-convict-lake-loop-04", "evidence_ids": [ "evidence-route-segment-convict-lake-loop-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-segment-convict-lake-loop-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{65CCBD07-6F11-41EC-9E7C-82B6776D9D0B}", "dataset_feature_name": "CONVICT LAKE LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.13874447, "distance_status": "known", "end_coordinate": { "latitude": 37.585917703787004, "longitude": -118.86499120844759 }, "geometry_snapshot": { "feature_id": "{65CCBD07-6F11-41EC-9E7C-82B6776D9D0B}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5830", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.58773640600552, "longitude": -118.86553319728223 } } }, "evidence": [ { "claim_id": "claim-route-segment-convict-lake-loop-04", "evidence_id": "evidence-route-segment-convict-lake-loop-04", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-convict-lake-loop-05", "evidence_ids": [ "evidence-route-segment-convict-lake-loop-05" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-convict-lake-loop" ], "subject_id": "route-segment-convict-lake-loop-05", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{13757B59-22A9-44C7-8D12-03EC877271DD}", "dataset_feature_name": "CONVICT LAKE LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.92597605, "distance_status": "known", "end_coordinate": { "latitude": 37.58914937464098, "longitude": -118.8543469528832 }, "geometry_snapshot": { "feature_id": "{13757B59-22A9-44C7-8D12-03EC877271DD}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6100", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.585917703787004, "longitude": -118.86499120844759 } } }, "evidence": [ { "claim_id": "claim-route-segment-convict-lake-loop-05", "evidence_id": "evidence-route-segment-convict-lake-loop-05", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-fern-lake-01", "evidence_ids": [ "evidence-route-segment-fern-lake-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-fern-lake-june" ], "subject_id": "route-segment-fern-lake-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{640C335E-E97D-4AFA-9972-9EB7C21FE88D}", "dataset_feature_name": "FERN LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.02312443, "distance_status": "known", "end_coordinate": { "latitude": 37.75518889405645, "longitude": -119.10970322303906 }, "geometry_snapshot": { "feature_id": "{640C335E-E97D-4AFA-9972-9EB7C21FE88D}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5779", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.75505614511339, "longitude": -119.10931542400199 } } }, "evidence": [ { "claim_id": "claim-route-segment-fern-lake-01", "evidence_id": "evidence-route-segment-fern-lake-01", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-fern-lake-02", "evidence_ids": [ "evidence-route-segment-fern-lake-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-fern-lake-june" ], "subject_id": "route-segment-fern-lake-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{575C76F4-327E-416D-800F-204B8C948846}", "dataset_feature_name": "FERN LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.41641016, "distance_status": "known", "end_coordinate": { "latitude": 37.749934558112535, "longitude": -119.11017331731131 }, "geometry_snapshot": { "feature_id": "{575C76F4-327E-416D-800F-204B8C948846}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3017", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.75518889405645, "longitude": -119.10970322303906 } } }, "evidence": [ { "claim_id": "claim-route-segment-fern-lake-02", "evidence_id": "evidence-route-segment-fern-lake-02", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-fern-lake-03", "evidence_ids": [ "evidence-route-segment-fern-lake-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-fern-lake-june" ], "subject_id": "route-segment-fern-lake-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{C34CC487-0DD8-4B35-AD39-D4D7D5EFC550}", "dataset_feature_name": "FERN LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.18308846, "distance_status": "known", "end_coordinate": { "latitude": 37.7477281683504, "longitude": -119.10977426178702 }, "geometry_snapshot": { "feature_id": "{C34CC487-0DD8-4B35-AD39-D4D7D5EFC550}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3014", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.749934558112535, "longitude": -119.11017331731131 } } }, "evidence": [ { "claim_id": "claim-route-segment-fern-lake-03", "evidence_id": "evidence-route-segment-fern-lake-03", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-fern-lake-04", "evidence_ids": [ "evidence-route-segment-fern-lake-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-fern-lake-june" ], "subject_id": "route-segment-fern-lake-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{CC0670CA-9962-4ADB-AD02-7E39DE521507}", "dataset_feature_name": "FERN LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.10070099000000002, "distance_status": "known", "end_coordinate": { "latitude": 37.74658942963456, "longitude": -119.11071388472872 }, "geometry_snapshot": { "feature_id": "{CC0670CA-9962-4ADB-AD02-7E39DE521507}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3013", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.7477281683504, "longitude": -119.10977426178702 } } }, "evidence": [ { "claim_id": "claim-route-segment-fern-lake-04", "evidence_id": "evidence-route-segment-fern-lake-04", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-heart-lake-mammoth-01", "evidence_ids": [ "evidence-route-segment-heart-lake-mammoth-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-heart-lake-mammoth" ], "subject_id": "route-segment-heart-lake-mammoth-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{5BC4CBC3-C302-4A96-A26B-858F52CD871B}", "dataset_feature_name": "HEART LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.03508961, "distance_status": "known", "end_coordinate": { "latitude": 37.59225723006476, "longitude": -118.98777866274429 }, "geometry_snapshot": { "feature_id": "{5BC4CBC3-C302-4A96-A26B-858F52CD871B}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6326", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.59225660189908, "longitude": -118.9883516482552 } } }, "evidence": [ { "claim_id": "claim-route-segment-heart-lake-mammoth-01", "evidence_id": "evidence-route-segment-heart-lake-mammoth-01", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-heart-lake-mammoth-02", "evidence_ids": [ "evidence-route-segment-heart-lake-mammoth-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-heart-lake-mammoth" ], "subject_id": "route-segment-heart-lake-mammoth-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{02E0298D-B86E-4BD7-9D37-11EB21EA8DCB}", "dataset_feature_name": "HEART LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.66018219, "distance_status": "known", "end_coordinate": { "latitude": 37.5928559159753, "longitude": -118.981614984713 }, "geometry_snapshot": { "feature_id": "{02E0298D-B86E-4BD7-9D37-11EB21EA8DCB}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6139", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.59225723006476, "longitude": -118.98777866274429 } } }, "evidence": [ { "claim_id": "claim-route-segment-heart-lake-mammoth-02", "evidence_id": "evidence-route-segment-heart-lake-mammoth-02", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-heart-lake-mammoth-03", "evidence_ids": [ "evidence-route-segment-heart-lake-mammoth-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-heart-lake-mammoth" ], "subject_id": "route-segment-heart-lake-mammoth-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{5C0E7A09-1D37-46DE-BA8C-A2941973FDBE}", "dataset_feature_name": "HEART LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.15442181000000002, "distance_status": "known", "end_coordinate": { "latitude": 37.59127081596044, "longitude": -118.97970107067866 }, "geometry_snapshot": { "feature_id": "{5C0E7A09-1D37-46DE-BA8C-A2941973FDBE}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5891", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.5928559159753, "longitude": -118.981614984713 } } }, "evidence": [ { "claim_id": "claim-route-segment-heart-lake-mammoth-03", "evidence_id": "evidence-route-segment-heart-lake-mammoth-03", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-heart-lake-mammoth-04", "evidence_ids": [ "evidence-route-segment-heart-lake-mammoth-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-heart-lake-mammoth" ], "subject_id": "route-segment-heart-lake-mammoth-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{6D2B739E-A275-4ADA-AFE4-24014D1AFD0F}", "dataset_feature_name": "HEART LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.20145294000000002, "distance_status": "known", "end_coordinate": { "latitude": 37.58886796790616, "longitude": -118.97842299103249 }, "geometry_snapshot": { "feature_id": "{6D2B739E-A275-4ADA-AFE4-24014D1AFD0F}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6287", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.59127081596044, "longitude": -118.97970107067866 } } }, "evidence": [ { "claim_id": "claim-route-segment-heart-lake-mammoth-04", "evidence_id": "evidence-route-segment-heart-lake-mammoth-04", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-lamarck-lakes-01", "evidence_ids": [ "evidence-route-segment-lamarck-lakes-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-lamarck-lakes" ], "subject_id": "route-segment-lamarck-lakes-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{197DBD9A-C332-4B2F-988D-8FE66A2C7FD0}", "dataset_feature_name": "LAMARCK LAKES", "dataset_field": "lengthmiles", "distance_miles": 0.03809463, "distance_status": "known", "end_coordinate": { "latitude": 37.226038791891234, "longitude": -118.62857104319129 }, "geometry_snapshot": { "feature_id": "{197DBD9A-C332-4B2F-988D-8FE66A2C7FD0}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5954", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.22654344610287, "longitude": -118.62863162763108 } } }, "evidence": [ { "claim_id": "claim-route-segment-lamarck-lakes-01", "evidence_id": "evidence-route-segment-lamarck-lakes-01", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-lamarck-lakes-02", "evidence_ids": [ "evidence-route-segment-lamarck-lakes-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-lamarck-lakes" ], "subject_id": "route-segment-lamarck-lakes-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{7B64F752-3CA1-43B9-A9D5-4FAAB119C6B6}", "dataset_feature_name": "LAMARCK LAKES", "dataset_field": "lengthmiles", "distance_miles": 0.89022998, "distance_status": "known", "end_coordinate": { "latitude": 37.220086686929875, "longitude": -118.63166477326858 }, "geometry_snapshot": { "feature_id": "{7B64F752-3CA1-43B9-A9D5-4FAAB119C6B6}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5921", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.226038791891234, "longitude": -118.62857104319129 } } }, "evidence": [ { "claim_id": "claim-route-segment-lamarck-lakes-02", "evidence_id": "evidence-route-segment-lamarck-lakes-02", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-lamarck-lakes-03", "evidence_ids": [ "evidence-route-segment-lamarck-lakes-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-lamarck-lakes" ], "subject_id": "route-segment-lamarck-lakes-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{5D362CB9-BAF5-40FA-9C90-A898285A5D53}", "dataset_feature_name": "LAMARCK LAKES", "dataset_field": "lengthmiles", "distance_miles": 0.0039851800000000005, "distance_status": "known", "end_coordinate": { "latitude": 37.22007927234086, "longitude": -118.63173640973795 }, "geometry_snapshot": { "feature_id": "{5D362CB9-BAF5-40FA-9C90-A898285A5D53}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5921", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.220086686929875, "longitude": -118.63166477326858 } } }, "evidence": [ { "claim_id": "claim-route-segment-lamarck-lakes-03", "evidence_id": "evidence-route-segment-lamarck-lakes-03", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-lamarck-lakes-04", "evidence_ids": [ "evidence-route-segment-lamarck-lakes-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-lamarck-lakes" ], "subject_id": "route-segment-lamarck-lakes-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{7883C1CE-3F51-420F-B463-26CBD70661D1}", "dataset_feature_name": "LAMARCK LAKES", "dataset_field": "lengthmiles", "distance_miles": 1.25282402, "distance_status": "known", "end_coordinate": { "latitude": 37.214442683495385, "longitude": -118.64322614853565 }, "geometry_snapshot": { "feature_id": "{7883C1CE-3F51-420F-B463-26CBD70661D1}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5822", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.22007927234086, "longitude": -118.63173640973795 } } }, "evidence": [ { "claim_id": "claim-route-segment-lamarck-lakes-04", "evidence_id": "evidence-route-segment-lamarck-lakes-04", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-lamarck-lakes-05", "evidence_ids": [ "evidence-route-segment-lamarck-lakes-05" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-lamarck-lakes" ], "subject_id": "route-segment-lamarck-lakes-05", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{70A05BFB-692F-4CFE-9380-1B9DA54DC158}", "dataset_feature_name": "LAMARCK LAKES", "dataset_field": "lengthmiles", "distance_miles": 0.24616287, "distance_status": "known", "end_coordinate": { "latitude": 37.212319478916, "longitude": -118.64619695088236 }, "geometry_snapshot": { "feature_id": "{70A05BFB-692F-4CFE-9380-1B9DA54DC158}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6812", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.214442683495385, "longitude": -118.64322614853565 } } }, "evidence": [ { "claim_id": "claim-route-segment-lamarck-lakes-05", "evidence_id": "evidence-route-segment-lamarck-lakes-05", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-01", "evidence_ids": [ "evidence-route-segment-mcgee-pass-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-01", "temporal_scope": null, "value": { "dataset_feature_id": "{3F2DFBCB-6A5E-46D8-94A9-3BBF48627E3F}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.029544880000000003, "distance_status": "known", "end_coordinate": { "latitude": 37.55071080376868, "longitude": -118.80294266613015 }, "geometry_snapshot": { "feature_id": "{3F2DFBCB-6A5E-46D8-94A9-3BBF48627E3F}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6093", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.55101794965568, "longitude": -118.802599874441 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-01", "evidence_id": "evidence-route-segment-mcgee-pass-01", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-02", "evidence_ids": [ "evidence-route-segment-mcgee-pass-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-02", "temporal_scope": null, "value": { "dataset_feature_id": "{E862DAC4-741C-4F1B-8CE8-89613E5E1CE3}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.38208609, "distance_status": "known", "end_coordinate": { "latitude": 37.54877944792513, "longitude": -118.80931544821965 }, "geometry_snapshot": { "feature_id": "{E862DAC4-741C-4F1B-8CE8-89613E5E1CE3}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6411", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.55071080376868, "longitude": -118.80294266613015 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-02", "evidence_id": "evidence-route-segment-mcgee-pass-02", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-03", "evidence_ids": [ "evidence-route-segment-mcgee-pass-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-03", "temporal_scope": null, "value": { "dataset_feature_id": "{0C5F6BEA-52CB-48C1-A226-2715017FA805}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.08018803000000001, "distance_status": "known", "end_coordinate": { "latitude": 37.54891610825281, "longitude": -118.81076000680721 }, "geometry_snapshot": { "feature_id": "{0C5F6BEA-52CB-48C1-A226-2715017FA805}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6411", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.54877944792513, "longitude": -118.80931544821965 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-03", "evidence_id": "evidence-route-segment-mcgee-pass-03", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-04", "evidence_ids": [ "evidence-route-segment-mcgee-pass-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-04", "temporal_scope": null, "value": { "dataset_feature_id": "{BF32211A-C401-4D4B-9843-4D5A7BA6124D}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.22758622, "distance_status": "known", "end_coordinate": { "latitude": 37.548580251683994, "longitude": -118.81481735327453 }, "geometry_snapshot": { "feature_id": "{BF32211A-C401-4D4B-9843-4D5A7BA6124D}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6102", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.54891610825281, "longitude": -118.81076000680721 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-04", "evidence_id": "evidence-route-segment-mcgee-pass-04", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-05", "evidence_ids": [ "evidence-route-segment-mcgee-pass-05" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-05", "temporal_scope": null, "value": { "dataset_feature_id": "{BAA37F7E-1F01-4B6F-92CE-505956371278}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.11266733000000001, "distance_status": "known", "end_coordinate": { "latitude": 37.549053627678624, "longitude": -118.81612453062688 }, "geometry_snapshot": { "feature_id": "{BAA37F7E-1F01-4B6F-92CE-505956371278}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6102", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.548580251683994, "longitude": -118.81481735327453 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-05", "evidence_id": "evidence-route-segment-mcgee-pass-05", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-06", "evidence_ids": [ "evidence-route-segment-mcgee-pass-06" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-06", "temporal_scope": null, "value": { "dataset_feature_id": "{9673B712-E950-4845-99E0-FF8C9BE94086}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.14584727, "distance_status": "known", "end_coordinate": { "latitude": 37.54823178577007, "longitude": -118.81843522675094 }, "geometry_snapshot": { "feature_id": "{9673B712-E950-4845-99E0-FF8C9BE94086}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6102", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.549053627678624, "longitude": -118.81612453062688 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-06", "evidence_id": "evidence-route-segment-mcgee-pass-06", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-07", "evidence_ids": [ "evidence-route-segment-mcgee-pass-07" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-07", "temporal_scope": null, "value": { "dataset_feature_id": "{F7E76514-1AD3-4846-AA9D-C28FDCCC2F86}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 2.8452541300000003, "distance_status": "known", "end_coordinate": { "latitude": 37.51637800650675, "longitude": -118.82085699964769 }, "geometry_snapshot": { "feature_id": "{F7E76514-1AD3-4846-AA9D-C28FDCCC2F86}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6706", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.54823178577007, "longitude": -118.81843522675094 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-07", "evidence_id": "evidence-route-segment-mcgee-pass-07", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-08", "evidence_ids": [ "evidence-route-segment-mcgee-pass-08" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-08", "temporal_scope": null, "value": { "dataset_feature_id": "{02DFD66A-033D-4C72-8EC3-1043C417CFF2}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.7051640200000001, "distance_status": "known", "end_coordinate": { "latitude": 37.50769969741446, "longitude": -118.81982583288782 }, "geometry_snapshot": { "feature_id": "{02DFD66A-033D-4C72-8EC3-1043C417CFF2}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6706", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.51637800650675, "longitude": -118.82085699964769 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-08", "evidence_id": "evidence-route-segment-mcgee-pass-08", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-09", "evidence_ids": [ "evidence-route-segment-mcgee-pass-09" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-09", "temporal_scope": null, "value": { "dataset_feature_id": "{F3F3FE93-B1DB-48E4-9FA9-1D890CD12B7F}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 1.3256220900000002, "distance_status": "known", "end_coordinate": { "latitude": 37.49994000522853, "longitude": -118.83142132144373 }, "geometry_snapshot": { "feature_id": "{F3F3FE93-B1DB-48E4-9FA9-1D890CD12B7F}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6706", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.50769969741446, "longitude": -118.81982583288782 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-09", "evidence_id": "evidence-route-segment-mcgee-pass-09", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-10", "evidence_ids": [ "evidence-route-segment-mcgee-pass-10" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-10", "temporal_scope": null, "value": { "dataset_feature_id": "{A98BBA10-9FCC-4176-9661-A17DB2ED6FB8}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 2.51812882, "distance_status": "known", "end_coordinate": { "latitude": 37.49994388260625, "longitude": -118.85681049022398 }, "geometry_snapshot": { "feature_id": "{A98BBA10-9FCC-4176-9661-A17DB2ED6FB8}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "7293", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.49994000522853, "longitude": -118.83142132144373 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-10", "evidence_id": "evidence-route-segment-mcgee-pass-10", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-11", "evidence_ids": [ "evidence-route-segment-mcgee-pass-11" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-11", "temporal_scope": null, "value": { "dataset_feature_id": "{5A5D600B-4CC2-46FB-B70B-1462956850A8}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.31733037000000003, "distance_status": "known", "end_coordinate": { "latitude": 37.50162024193529, "longitude": -118.85973888464395 }, "geometry_snapshot": { "feature_id": "{5A5D600B-4CC2-46FB-B70B-1462956850A8}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "3325", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.49994388260625, "longitude": -118.85681049022398 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-11", "evidence_id": "evidence-route-segment-mcgee-pass-11", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-12", "evidence_ids": [ "evidence-route-segment-mcgee-pass-12" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-12", "temporal_scope": null, "value": { "dataset_feature_id": "{A63D96FB-85AA-4AC3-8194-69D20D789120}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.7463328100000001, "distance_status": "known", "end_coordinate": { "latitude": 37.4999410946084, "longitude": -118.86386984451491 }, "geometry_snapshot": { "feature_id": "{A63D96FB-85AA-4AC3-8194-69D20D789120}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6517", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.50162024193529, "longitude": -118.85973888464395 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-12", "evidence_id": "evidence-route-segment-mcgee-pass-12", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-13", "evidence_ids": [ "evidence-route-segment-mcgee-pass-13" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-13", "temporal_scope": null, "value": { "dataset_feature_id": "{C8B8150A-1F80-43CB-B921-010BDF02FF80}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 1.3799338300000001, "distance_status": "known", "end_coordinate": { "latitude": 37.4955411527105, "longitude": -118.87595735331443 }, "geometry_snapshot": { "feature_id": "{C8B8150A-1F80-43CB-B921-010BDF02FF80}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6819", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.4999410946084, "longitude": -118.86386984451491 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-13", "evidence_id": "evidence-route-segment-mcgee-pass-13", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-14", "evidence_ids": [ "evidence-route-segment-mcgee-pass-14" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-14", "temporal_scope": null, "value": { "dataset_feature_id": "{92A41516-DBB7-4C5E-8415-218C11C0FAAA}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 1.6381267300000002, "distance_status": "known", "end_coordinate": { "latitude": 37.49164758303478, "longitude": -118.89859181703527 }, "geometry_snapshot": { "feature_id": "{92A41516-DBB7-4C5E-8415-218C11C0FAAA}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6494", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.4955411527105, "longitude": -118.87595735331443 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-14", "evidence_id": "evidence-route-segment-mcgee-pass-14", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-15", "evidence_ids": [ "evidence-route-segment-mcgee-pass-15" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-15", "temporal_scope": null, "value": { "dataset_feature_id": "{B2A07B4B-1195-49DA-87D8-C83E4DE34877}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 1.33426602, "distance_status": "known", "end_coordinate": { "latitude": 37.49994284401628, "longitude": -118.91659966780223 }, "geometry_snapshot": { "feature_id": "{B2A07B4B-1195-49DA-87D8-C83E4DE34877}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6494", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.49164758303478, "longitude": -118.89859181703527 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-15", "evidence_id": "evidence-route-segment-mcgee-pass-15", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-mcgee-pass-16", "evidence_ids": [ "evidence-route-segment-mcgee-pass-16" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-mcgee-creek" ], "subject_id": "route-segment-mcgee-pass-16", "temporal_scope": null, "value": { "dataset_feature_id": "{7C138AC3-A4A4-4EBF-A98A-A627B77F0D69}", "dataset_feature_name": "MCGEE PASS", "distance_miles": 0.46556905000000004, "distance_status": "known", "end_coordinate": { "latitude": 37.5015913696589, "longitude": -118.92449132762013 }, "geometry_snapshot": { "feature_id": "{7C138AC3-A4A4-4EBF-A98A-A627B77F0D69}", "path": "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "sha256": "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" }, "route_role": "official_mainline", "source_feature_id": "6132", "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.49994284401628, "longitude": -118.91659966780223 } } }, "evidence": [ { "claim_id": "claim-route-segment-mcgee-pass-16", "evidence_id": "evidence-route-segment-mcgee-pass-16", "notes": "", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-parker-lake-01", "evidence_ids": [ "evidence-route-segment-parker-lake-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-parker-lake" ], "subject_id": "route-segment-parker-lake-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{1B40EDAF-4E02-474B-9F7B-483B78F5905F}", "dataset_feature_name": "PARKER LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.02795666, "distance_status": "known", "end_coordinate": { "latitude": 37.85290757535016, "longitude": -119.13512041127031 }, "geometry_snapshot": { "feature_id": "{1B40EDAF-4E02-474B-9F7B-483B78F5905F}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6465", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.852948730598385, "longitude": -119.13461999660952 } } }, "evidence": [ { "claim_id": "claim-route-segment-parker-lake-01", "evidence_id": "evidence-route-segment-parker-lake-01", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-parker-lake-02", "evidence_ids": [ "evidence-route-segment-parker-lake-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-parker-lake" ], "subject_id": "route-segment-parker-lake-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{5B2404AE-DFD5-45D0-A42F-87A2B607BABC}", "dataset_feature_name": "PARKER LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.28995178, "distance_status": "known", "end_coordinate": { "latitude": 37.85020341862266, "longitude": -119.13824076251446 }, "geometry_snapshot": { "feature_id": "{5B2404AE-DFD5-45D0-A42F-87A2B607BABC}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3025", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.85290757535016, "longitude": -119.13512041127031 } } }, "evidence": [ { "claim_id": "claim-route-segment-parker-lake-02", "evidence_id": "evidence-route-segment-parker-lake-02", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-parker-lake-03", "evidence_ids": [ "evidence-route-segment-parker-lake-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-parker-lake" ], "subject_id": "route-segment-parker-lake-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{AFD9FB4A-56A1-4980-AD25-48C53A717665}", "dataset_feature_name": "PARKER LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.01737338, "distance_status": "known", "end_coordinate": { "latitude": 37.849970998805965, "longitude": -119.13828664687043 }, "geometry_snapshot": { "feature_id": "{AFD9FB4A-56A1-4980-AD25-48C53A717665}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6069", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.85020341862266, "longitude": -119.13824076251446 } } }, "evidence": [ { "claim_id": "claim-route-segment-parker-lake-03", "evidence_id": "evidence-route-segment-parker-lake-03", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-parker-lake-04", "evidence_ids": [ "evidence-route-segment-parker-lake-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-parker-lake" ], "subject_id": "route-segment-parker-lake-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{2A04895A-16DE-476D-AC20-963F3C5E7499}", "dataset_feature_name": "PARKER LAKE", "dataset_field": "lengthmiles", "distance_miles": 1.30492852, "distance_status": "known", "end_coordinate": { "latitude": 37.836787880883875, "longitude": -119.1530778873723 }, "geometry_snapshot": { "feature_id": "{2A04895A-16DE-476D-AC20-963F3C5E7499}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3024", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.849970998805965, "longitude": -119.13828664687043 } } }, "evidence": [ { "claim_id": "claim-route-segment-parker-lake-04", "evidence_id": "evidence-route-segment-parker-lake-04", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-parker-lake-05", "evidence_ids": [ "evidence-route-segment-parker-lake-05" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-parker-lake" ], "subject_id": "route-segment-parker-lake-05", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{5699EAF7-703C-42FC-809A-E09023586554}", "dataset_feature_name": "PARKER LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.20678222000000002, "distance_status": "known", "end_coordinate": { "latitude": 37.83510930238851, "longitude": -119.15604435850027 }, "geometry_snapshot": { "feature_id": "{5699EAF7-703C-42FC-809A-E09023586554}", "path": "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "sha256": "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3024", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.836787880883875, "longitude": -119.1530778873723 } } }, "evidence": [ { "claim_id": "claim-route-segment-parker-lake-05", "evidence_id": "evidence-route-segment-parker-lake-05", "notes": "", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-piute-pass-01", "evidence_ids": [ "evidence-route-segment-piute-pass-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-piute-pass" ], "subject_id": "route-segment-piute-pass-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{C72B1C66-6B1C-40E3-A59D-E2AA1735184D}", "dataset_feature_name": "PIUTE PASS", "dataset_field": "lengthmiles", "distance_miles": 0.10036282, "distance_status": "known", "end_coordinate": { "latitude": 37.22654344610287, "longitude": -118.62863162763108 }, "geometry_snapshot": { "feature_id": "{C72B1C66-6B1C-40E3-A59D-E2AA1735184D}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6436", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.22732132855004, "longitude": -118.62748197439943 } } }, "evidence": [ { "claim_id": "claim-route-segment-piute-pass-01", "evidence_id": "evidence-route-segment-piute-pass-01", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-piute-pass-02", "evidence_ids": [ "evidence-route-segment-piute-pass-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-piute-pass" ], "subject_id": "route-segment-piute-pass-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{1F922F54-531F-4EF0-BA20-21BDB36535B4}", "dataset_feature_name": "PIUTE PASS", "dataset_field": "lengthmiles", "distance_miles": 0.02516299, "distance_status": "known", "end_coordinate": { "latitude": 37.22663281378986, "longitude": -118.62906546729614 }, "geometry_snapshot": { "feature_id": "{1F922F54-531F-4EF0-BA20-21BDB36535B4}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6436", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.22654344610287, "longitude": -118.62863162763108 } } }, "evidence": [ { "claim_id": "claim-route-segment-piute-pass-02", "evidence_id": "evidence-route-segment-piute-pass-02", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-piute-pass-03", "evidence_ids": [ "evidence-route-segment-piute-pass-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-piute-pass" ], "subject_id": "route-segment-piute-pass-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{EDBD04BD-D0FF-4A29-B88E-EBE89757E03F}", "dataset_feature_name": "PIUTE PASS", "dataset_field": "lengthmiles", "distance_miles": 4.6101247, "distance_status": "known", "end_coordinate": { "latitude": 37.23880239969969, "longitude": -118.68409551420994 }, "geometry_snapshot": { "feature_id": "{EDBD04BD-D0FF-4A29-B88E-EBE89757E03F}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6056", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.22663281378986, "longitude": -118.62906546729614 } } }, "evidence": [ { "claim_id": "claim-route-segment-piute-pass-03", "evidence_id": "evidence-route-segment-piute-pass-03", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-sabrina-blue-lake-01", "evidence_ids": [ "evidence-route-segment-sabrina-blue-lake-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-sabrina-blue-lake" ], "subject_id": "route-segment-sabrina-blue-lake-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{45370059-EF96-45D5-B604-31AEF96807FC}", "dataset_feature_name": "SABRINA BASIN", "dataset_field": "lengthmiles", "distance_miles": 0.06292591, "distance_status": "known", "end_coordinate": { "latitude": 37.212801332505954, "longitude": -118.61008434285186 }, "geometry_snapshot": { "feature_id": "{45370059-EF96-45D5-B604-31AEF96807FC}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6781", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.21366032842563, "longitude": -118.61004803668888 } } }, "evidence": [ { "claim_id": "claim-route-segment-sabrina-blue-lake-01", "evidence_id": "evidence-route-segment-sabrina-blue-lake-01", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-sabrina-blue-lake-02", "evidence_ids": [ "evidence-route-segment-sabrina-blue-lake-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-sabrina-blue-lake" ], "subject_id": "route-segment-sabrina-blue-lake-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{6A9DF0BF-0EAF-428F-9A2E-83EC0DE68B37}", "dataset_feature_name": "SABRINA BASIN", "dataset_field": "lengthmiles", "distance_miles": 0.6686805200000001, "distance_status": "known", "end_coordinate": { "latitude": 37.20663973147426, "longitude": -118.61629932550952 }, "geometry_snapshot": { "feature_id": "{6A9DF0BF-0EAF-428F-9A2E-83EC0DE68B37}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5481", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.212801332505954, "longitude": -118.61008434285186 } } }, "evidence": [ { "claim_id": "claim-route-segment-sabrina-blue-lake-02", "evidence_id": "evidence-route-segment-sabrina-blue-lake-02", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-sabrina-blue-lake-03", "evidence_ids": [ "evidence-route-segment-sabrina-blue-lake-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-sabrina-blue-lake" ], "subject_id": "route-segment-sabrina-blue-lake-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{CABB3CC7-9F45-4FA1-9055-1834D48C5145}", "dataset_feature_name": "SABRINA BASIN", "dataset_field": "lengthmiles", "distance_miles": 0.52312359, "distance_status": "known", "end_coordinate": { "latitude": 37.200058793325276, "longitude": -118.61639608731365 }, "geometry_snapshot": { "feature_id": "{CABB3CC7-9F45-4FA1-9055-1834D48C5145}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "4171", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.20663973147426, "longitude": -118.61629932550952 } } }, "evidence": [ { "claim_id": "claim-route-segment-sabrina-blue-lake-03", "evidence_id": "evidence-route-segment-sabrina-blue-lake-03", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-sabrina-blue-lake-04", "evidence_ids": [ "evidence-route-segment-sabrina-blue-lake-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-sabrina-blue-lake" ], "subject_id": "route-segment-sabrina-blue-lake-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{E3B81976-03C0-4B83-BF3E-BCCBDFC0EEB8}", "dataset_feature_name": "SABRINA BASIN", "dataset_field": "lengthmiles", "distance_miles": 2.06843139, "distance_status": "known", "end_coordinate": { "latitude": 37.18433378101153, "longitude": -118.62162768127489 }, "geometry_snapshot": { "feature_id": "{E3B81976-03C0-4B83-BF3E-BCCBDFC0EEB8}", "path": "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "sha256": "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "4171", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.200058793325276, "longitude": -118.61639608731365 } } }, "evidence": [ { "claim_id": "claim-route-segment-sabrina-blue-lake-04", "evidence_id": "evidence-route-segment-sabrina-blue-lake-04", "notes": "", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-treasure-lakes-01", "evidence_ids": [ "evidence-route-segment-treasure-lakes-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-treasure-lakes" ], "subject_id": "route-segment-treasure-lakes-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{A186567E-F41B-4E9B-B30E-51FAC507D3F6}", "dataset_feature_name": "BISHOP PASS", "dataset_field": "lengthmiles", "distance_miles": 0.31627164, "distance_status": "known", "end_coordinate": { "latitude": 37.1652240278596, "longitude": -118.56482659060168 }, "geometry_snapshot": { "feature_id": "{A186567E-F41B-4E9B-B30E-51FAC507D3F6}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5477", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.1693299188176, "longitude": -118.56582613496069 } } }, "evidence": [ { "claim_id": "claim-route-segment-treasure-lakes-01", "evidence_id": "evidence-route-segment-treasure-lakes-01", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-treasure-lakes-02", "evidence_ids": [ "evidence-route-segment-treasure-lakes-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-treasure-lakes" ], "subject_id": "route-segment-treasure-lakes-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{5D6BC459-47B7-4B51-87D3-96E4DCDAEEB0}", "dataset_feature_name": "BISHOP PASS", "dataset_field": "lengthmiles", "distance_miles": 0.41246116000000005, "distance_status": "known", "end_coordinate": { "latitude": 37.161509166049136, "longitude": -118.56465779746478 }, "geometry_snapshot": { "feature_id": "{5D6BC459-47B7-4B51-87D3-96E4DCDAEEB0}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5674", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.1652240278596, "longitude": -118.56482659060168 } } }, "evidence": [ { "claim_id": "claim-route-segment-treasure-lakes-02", "evidence_id": "evidence-route-segment-treasure-lakes-02", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-treasure-lakes-03", "evidence_ids": [ "evidence-route-segment-treasure-lakes-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-treasure-lakes" ], "subject_id": "route-segment-treasure-lakes-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{93E539C3-B4DA-4C0A-99E8-4958DD2B2598}", "dataset_feature_name": "BISHOP PASS", "dataset_field": "lengthmiles", "distance_miles": 0.09704744, "distance_status": "known", "end_coordinate": { "latitude": 37.160370595046636, "longitude": -118.56549355268949 }, "geometry_snapshot": { "feature_id": "{93E539C3-B4DA-4C0A-99E8-4958DD2B2598}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5664", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.161509166049136, "longitude": -118.56465779746478 } } }, "evidence": [ { "claim_id": "claim-route-segment-treasure-lakes-03", "evidence_id": "evidence-route-segment-treasure-lakes-03", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-treasure-lakes-04", "evidence_ids": [ "evidence-route-segment-treasure-lakes-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-treasure-lakes" ], "subject_id": "route-segment-treasure-lakes-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "dataset_feature_id": "{2455306E-FFBB-4E3E-9AB4-54599266EFAB}", "dataset_feature_name": "TREASURE LAKES", "dataset_field": "lengthmiles", "distance_miles": 2.59896847, "distance_status": "known", "end_coordinate": { "latitude": 37.13996646104448, "longitude": -118.57641685439295 }, "geometry_snapshot": { "feature_id": "{2455306E-FFBB-4E3E-9AB4-54599266EFAB}", "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "5825", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.160370595046636, "longitude": -118.56549355268949 } } }, "evidence": [ { "claim_id": "claim-route-segment-treasure-lakes-04", "evidence_id": "evidence-route-segment-treasure-lakes-04", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-yost-fern-shared-01", "evidence_ids": [ "evidence-route-segment-yost-fern-shared-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-trailhead-yost-fern" ], "subject_id": "route-segment-yost-fern-shared-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "shared_corridor", "dataset_feature_id": "{5C45A880-E365-468D-B642-2DBB0DDD818B}", "dataset_feature_name": "YOST MEADOW LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.0275589, "distance_status": "known", "end_coordinate": { "latitude": 37.76140837355705, "longitude": -119.11319787431923 }, "geometry_snapshot": { "feature_id": "{5C45A880-E365-468D-B642-2DBB0DDD818B}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3386", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.76178296524957, "longitude": -119.11332825146656 } } }, "evidence": [ { "claim_id": "claim-route-segment-yost-fern-shared-01", "evidence_id": "evidence-route-segment-yost-fern-shared-01", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-yost-fern-shared-02", "evidence_ids": [ "evidence-route-segment-yost-fern-shared-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-trailhead-yost-fern" ], "subject_id": "route-segment-yost-fern-shared-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "shared_corridor", "dataset_feature_id": "{5A898C56-83C6-4AB1-A105-34472F1BC040}", "dataset_feature_name": "YOST MEADOW LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.88639014, "distance_status": "known", "end_coordinate": { "latitude": 37.75505614511339, "longitude": -119.10931542400199 }, "geometry_snapshot": { "feature_id": "{5A898C56-83C6-4AB1-A105-34472F1BC040}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6668", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.76140837355705, "longitude": -119.11319787431923 } } }, "evidence": [ { "claim_id": "claim-route-segment-yost-fern-shared-02", "evidence_id": "evidence-route-segment-yost-fern-shared-02", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-yost-lake-01", "evidence_ids": [ "evidence-route-segment-yost-lake-01" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-yost-lake" ], "subject_id": "route-segment-yost-lake-01", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{25E975A4-1BEF-491A-B6BB-ABC22B5EC433}", "dataset_feature_name": "YOST MEADOW LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.57057318, "distance_status": "known", "end_coordinate": { "latitude": 37.753752133114986, "longitude": -119.10059687450558 }, "geometry_snapshot": { "feature_id": "{25E975A4-1BEF-491A-B6BB-ABC22B5EC433}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "6668", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.75505614511339, "longitude": -119.10931542400199 } } }, "evidence": [ { "claim_id": "claim-route-segment-yost-lake-01", "evidence_id": "evidence-route-segment-yost-lake-01", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-yost-lake-02", "evidence_ids": [ "evidence-route-segment-yost-lake-02" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-yost-lake" ], "subject_id": "route-segment-yost-lake-02", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{9D3B8153-B564-4F33-9458-FC71A908BE11}", "dataset_feature_name": "YOST MEADOW LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.32306741, "distance_status": "known", "end_coordinate": { "latitude": 37.749935231959334, "longitude": -119.0971766828856 }, "geometry_snapshot": { "feature_id": "{9D3B8153-B564-4F33-9458-FC71A908BE11}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "2843", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.753752133114986, "longitude": -119.10059687450558 } } }, "evidence": [ { "claim_id": "claim-route-segment-yost-lake-02", "evidence_id": "evidence-route-segment-yost-lake-02", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-yost-lake-03", "evidence_ids": [ "evidence-route-segment-yost-lake-03" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-yost-lake" ], "subject_id": "route-segment-yost-lake-03", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{F722E944-8504-41A9-A78C-1FE923867A83}", "dataset_feature_name": "YOST MEADOW LOOP", "dataset_field": "lengthmiles", "distance_miles": 0.18272396, "distance_status": "known", "end_coordinate": { "latitude": 37.74783365377253, "longitude": -119.09527881775203 }, "geometry_snapshot": { "feature_id": "{F722E944-8504-41A9-A78C-1FE923867A83}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "2862", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.749935231959334, "longitude": -119.0971766828856 } } }, "evidence": [ { "claim_id": "claim-route-segment-yost-lake-03", "evidence_id": "evidence-route-segment-yost-lake-03", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-segment-yost-lake-04", "evidence_ids": [ "evidence-route-segment-yost-lake-04" ], "predicate": "official_dataset_route_segment", "spatial_scope_ids": [ "scope-route-yost-lake" ], "subject_id": "route-segment-yost-lake-04", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "corridor_role": "destination_branch", "dataset_feature_id": "{CB1F82F7-3333-4DAD-B8A0-2EBFFE700748}", "dataset_feature_name": "YOST LAKE", "dataset_field": "lengthmiles", "distance_miles": 0.21545227, "distance_status": "known", "end_coordinate": { "latitude": 37.745062399263254, "longitude": -119.09642618012604 }, "geometry_snapshot": { "feature_id": "{CB1F82F7-3333-4DAD-B8A0-2EBFFE700748}", "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "route_role": "official_mainline", "source_dataset_id": "{8CC4DB36-D0BE-4189-88C7-64C3569EB754}", "source_edit_date": 1774742400000, "source_feature_id": "3012", "source_load_date": 1777310283000, "source_originator": "U.S. Forest Service", "start_coordinate": { "latitude": 37.74783365377253, "longitude": -119.09527881775203 } } }, "evidence": [ { "claim_id": "claim-route-segment-yost-lake-04", "evidence_id": "evidence-route-segment-yost-lake-04", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-treasure-lakes-dataset-profile", "evidence_ids": [ "evidence-route-treasure-lakes-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-treasure-lakes" ], "subject_id": "route-treasure-lakes", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "sha256": "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" }, "one_way_distance_miles": 3.42474871 } }, "evidence": [ { "claim_id": "claim-route-treasure-lakes-dataset-profile", "evidence_id": "evidence-route-treasure-lakes-dataset-profile", "notes": "", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-route-yost-lake-dataset-profile", "evidence_ids": [ "evidence-route-yost-lake-dataset-profile" ], "predicate": "dataset_route_profile", "spatial_scope_ids": [ "scope-route-yost-lake" ], "subject_id": "route-yost-lake", "temporal_scope": null, "value": { "bidirectional": true, "distance_basis": "sum of selected USGS source-field lengthmiles values", "distance_disagreement_preserved": true, "geometry_snapshot": { "path": "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "sha256": "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" }, "one_way_distance_miles": 2.20576586, "published_guide_one_way_miles": 3.8 } }, "evidence": [ { "claim_id": "claim-route-yost-lake-dataset-profile", "evidence_id": "evidence-route-yost-lake-dataset-profile", "notes": "", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-lundy-canyon-map-point", "evidence_ids": [ "evidence-trailhead-lundy-canyon-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "evidence-trailhead-lundy-canyon-map-point-osm-eastern-sierra-trailhead-points-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-lundy-canyon", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-lundy-canyon", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 38.02253187987994, "longitude": -119.26182901097219, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint_corroborated_by_osm", "source_feature_id": "{5B21FCE1-DB4A-4F9B-9A35-0D8E6F262D22}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924", "source-osm-nominatim-eastern-sierra-trailheads-20260925" ] } }, "evidence": [ { "claim_id": "claim-trailhead-lundy-canyon-map-point", "evidence_id": "evidence-trailhead-lundy-canyon-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" }, { "claim_id": "claim-trailhead-lundy-canyon-map-point", "evidence_id": "evidence-trailhead-lundy-canyon-map-point-osm-eastern-sierra-trailhead-points-20260925", "notes": "", "observation_id": "observation-osm-eastern-sierra-trailhead-points-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "OpenStreetMap Nominatim returned named highway=trailhead nodes for Lundy Canyon Trailhead (node 3979042564) and Virginia Lakes Trailhead (node 8569451796). These community-mapped points are retained with ODbL provenance and are not represented as agency-published locations.", "observation_id": "observation-osm-eastern-sierra-trailhead-points-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-osm-nominatim-eastern-sierra-trailheads-20260925" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "locator": "https://nominatim.openstreetmap.org/", "publisher": "OpenStreetMap contributors", "source_id": "source-osm-nominatim-eastern-sierra-trailheads-20260925" } ] }, { "claim": { "claim_id": "claim-trailhead-mcgee-creek-map-point", "evidence_ids": [ "evidence-trailhead-mcgee-creek-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-mcgee-creek", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-mcgee-creek", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.55101794965568, "longitude": -118.802599874441, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{3F2DFBCB-6A5E-46D8-94A9-3BBF48627E3F}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-mcgee-creek-map-point", "evidence_id": "evidence-trailhead-mcgee-creek-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-mosquito-flat-map-point", "evidence_ids": [ "evidence-trailhead-mosquito-flat-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-mosquito-flat", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-mosquito-flat", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.43517256793456, "longitude": -118.74716727403785, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{3641DF33-6BC5-4367-9CC8-2ACEBF3F4B06}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-mosquito-flat-map-point", "evidence_id": "evidence-trailhead-mosquito-flat-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-north-lake-bishop-map-point", "evidence_ids": [ "evidence-trailhead-north-lake-bishop-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-north-lake-bishop", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-north-lake-bishop", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.22732132855004, "longitude": -118.62748197439943, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{C72B1C66-6B1C-40E3-A59D-E2AA1735184D}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-north-lake-bishop-map-point", "evidence_id": "evidence-trailhead-north-lake-bishop-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-parker-lake-map-point", "evidence_ids": [ "evidence-trailhead-parker-lake-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-parker-lake", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-parker-lake", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.852948730598385, "longitude": -119.13461999660952, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{1B40EDAF-4E02-474B-9F7B-483B78F5905F}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-parker-lake-map-point", "evidence_id": "evidence-trailhead-parker-lake-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-sabrina-basin-map-point", "evidence_ids": [ "evidence-trailhead-sabrina-basin-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-sabrina-basin", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-sabrina-basin", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.21366032842563, "longitude": -118.61004803668888, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{45370059-EF96-45D5-B604-31AEF96807FC}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-sabrina-basin-map-point", "evidence_id": "evidence-trailhead-sabrina-basin-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-south-lake-bishop-map-point", "evidence_ids": [ "evidence-trailhead-south-lake-bishop-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-south-lake-bishop", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-south-lake-bishop", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.1693299188176, "longitude": -118.56582613496069, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{A186567E-F41B-4E9B-B30E-51FAC507D3F6}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-south-lake-bishop-map-point", "evidence_id": "evidence-trailhead-south-lake-bishop-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-tamarack-lakes-rock-creek-map-point", "evidence_ids": [ "evidence-trailhead-tamarack-lakes-rock-creek-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-tamarack-lakes-rock-creek", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-tamarack-lakes-rock-creek", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.45274314499062, "longitude": -118.73446831364089, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{26BA48D2-117F-4FCC-B9DA-98BD24C412AC}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-tamarack-lakes-rock-creek-map-point", "evidence_id": "evidence-trailhead-tamarack-lakes-rock-creek-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }, { "claim": { "claim_id": "claim-trailhead-yost-fern-map-point", "evidence_ids": [ "evidence-trailhead-yost-fern-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925" ], "predicate": "reviewed_access_point_coordinate", "spatial_scope_ids": [], "subject_id": "trailhead-yost-fern", "temporal_scope": null, "value": { "geometry_snapshot": { "feature_id": "trailhead-yost-fern", "path": "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "sha256": "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" }, "latitude": 37.76178296524957, "longitude": -119.11332825146656, "navigation_grade": false, "provenance": "reviewed_usgs_route_endpoint", "source_feature_id": "{5C45A880-E365-468D-B642-2DBB0DDD818B}", "source_ids": [ "source-usgs-national-digital-trails-eastern-sierra-20260924" ] } }, "evidence": [ { "claim_id": "claim-trailhead-yost-fern-map-point", "evidence_id": "evidence-trailhead-yost-fern-map-point-usgs-eastern-sierra-trailhead-endpoints-20260925", "notes": "", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "stance": "supports" } ], "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] } ], "entities": [ { "entity_id": "access-convict-hiker-parking", "kind": "parking", "name": "Convict hiker parking" }, { "entity_id": "access-upper-rock-creek-east-fork", "kind": "trail_access", "name": "Upper Rock Creek trail access near East Fork Campground" }, { "entity_id": "route-convict-hiker-parking-connector", "kind": "route", "name": "Convict hiker parking connector" }, { "entity_id": "route-convict-lake-loop", "kind": "route", "name": "Convict Lake Loop" }, { "entity_id": "route-fern-lake-june", "kind": "route", "name": "Fern Lake Trail" }, { "entity_id": "route-heart-lake-mammoth", "kind": "route", "name": "Heart Lake Trail" }, { "entity_id": "route-lamarck-lakes", "kind": "route", "name": "Lamarck Lakes Trail" }, { "entity_id": "route-mcgee-creek", "kind": "route", "name": "McGee Creek Trail" }, { "entity_id": "route-mcgee-creek-beaver-pond", "kind": "route", "name": "McGee Creek to Beaver Pond" }, { "entity_id": "route-parker-lake", "kind": "route", "name": "Parker Lake Trail" }, { "entity_id": "route-piute-pass", "kind": "route", "name": "Piute Pass Trail" }, { "entity_id": "route-sabrina-blue-lake", "kind": "route", "name": "Sabrina Basin Trail to Blue Lake" }, { "entity_id": "route-segment-convict-hiker-parking-connector", "kind": "route_segment", "name": "Convict hiker parking connector" }, { "entity_id": "route-segment-convict-lake-loop-01", "kind": "route_segment", "name": "Convict Lake Loop segment 1" }, { "entity_id": "route-segment-convict-lake-loop-02", "kind": "route_segment", "name": "Convict Lake Loop segment 2" }, { "entity_id": "route-segment-convict-lake-loop-03", "kind": "route_segment", "name": "Convict Lake Loop segment 3" }, { "entity_id": "route-segment-convict-lake-loop-04", "kind": "route_segment", "name": "Convict Lake Loop segment 4" }, { "entity_id": "route-segment-convict-lake-loop-05", "kind": "route_segment", "name": "Convict Lake Loop segment 5" }, { "entity_id": "route-segment-fern-lake-01", "kind": "route_segment", "name": "Fern Lake branch segment 1" }, { "entity_id": "route-segment-fern-lake-02", "kind": "route_segment", "name": "Fern Lake branch segment 2" }, { "entity_id": "route-segment-fern-lake-03", "kind": "route_segment", "name": "Fern Lake branch segment 3" }, { "entity_id": "route-segment-fern-lake-04", "kind": "route_segment", "name": "Fern Lake branch segment 4" }, { "entity_id": "route-segment-heart-lake-mammoth-01", "kind": "route_segment", "name": "Heart Lake segment 1" }, { "entity_id": "route-segment-heart-lake-mammoth-02", "kind": "route_segment", "name": "Heart Lake segment 2" }, { "entity_id": "route-segment-heart-lake-mammoth-03", "kind": "route_segment", "name": "Heart Lake segment 3" }, { "entity_id": "route-segment-heart-lake-mammoth-04", "kind": "route_segment", "name": "Heart Lake segment 4" }, { "entity_id": "route-segment-lamarck-lakes-01", "kind": "route_segment", "name": "Lamarck Lakes segment 1" }, { "entity_id": "route-segment-lamarck-lakes-02", "kind": "route_segment", "name": "Lamarck Lakes segment 2" }, { "entity_id": "route-segment-lamarck-lakes-03", "kind": "route_segment", "name": "Lamarck Lakes segment 3" }, { "entity_id": "route-segment-lamarck-lakes-04", "kind": "route_segment", "name": "Lamarck Lakes segment 4" }, { "entity_id": "route-segment-lamarck-lakes-05", "kind": "route_segment", "name": "Lamarck Lakes segment 5" }, { "entity_id": "route-segment-mcgee-pass-01", "kind": "route_segment", "name": "McGee Pass dataset segment 1" }, { "entity_id": "route-segment-mcgee-pass-02", "kind": "route_segment", "name": "McGee Pass dataset segment 2" }, { "entity_id": "route-segment-mcgee-pass-03", "kind": "route_segment", "name": "McGee Pass dataset segment 3" }, { "entity_id": "route-segment-mcgee-pass-04", "kind": "route_segment", "name": "McGee Pass dataset segment 4" }, { "entity_id": "route-segment-mcgee-pass-05", "kind": "route_segment", "name": "McGee Pass dataset segment 5" }, { "entity_id": "route-segment-mcgee-pass-06", "kind": "route_segment", "name": "McGee Pass dataset segment 6" }, { "entity_id": "route-segment-mcgee-pass-07", "kind": "route_segment", "name": "McGee Pass dataset segment 7" }, { "entity_id": "route-segment-mcgee-pass-08", "kind": "route_segment", "name": "McGee Pass dataset segment 8" }, { "entity_id": "route-segment-mcgee-pass-09", "kind": "route_segment", "name": "McGee Pass dataset segment 9" }, { "entity_id": "route-segment-mcgee-pass-10", "kind": "route_segment", "name": "McGee Pass dataset segment 10" }, { "entity_id": "route-segment-mcgee-pass-11", "kind": "route_segment", "name": "McGee Pass dataset segment 11" }, { "entity_id": "route-segment-mcgee-pass-12", "kind": "route_segment", "name": "McGee Pass dataset segment 12" }, { "entity_id": "route-segment-mcgee-pass-13", "kind": "route_segment", "name": "McGee Pass dataset segment 13" }, { "entity_id": "route-segment-mcgee-pass-14", "kind": "route_segment", "name": "McGee Pass dataset segment 14" }, { "entity_id": "route-segment-mcgee-pass-15", "kind": "route_segment", "name": "McGee Pass dataset segment 15" }, { "entity_id": "route-segment-mcgee-pass-16", "kind": "route_segment", "name": "McGee Pass dataset segment 16" }, { "entity_id": "route-segment-parker-lake-01", "kind": "route_segment", "name": "Parker Lake segment 1" }, { "entity_id": "route-segment-parker-lake-02", "kind": "route_segment", "name": "Parker Lake segment 2" }, { "entity_id": "route-segment-parker-lake-03", "kind": "route_segment", "name": "Parker Lake segment 3" }, { "entity_id": "route-segment-parker-lake-04", "kind": "route_segment", "name": "Parker Lake segment 4" }, { "entity_id": "route-segment-parker-lake-05", "kind": "route_segment", "name": "Parker Lake segment 5" }, { "entity_id": "route-segment-piute-pass-01", "kind": "route_segment", "name": "North Lake to Piute Pass segment 1" }, { "entity_id": "route-segment-piute-pass-02", "kind": "route_segment", "name": "North Lake to Piute Pass segment 2" }, { "entity_id": "route-segment-piute-pass-03", "kind": "route_segment", "name": "North Lake to Piute Pass segment 3" }, { "entity_id": "route-segment-sabrina-blue-lake-01", "kind": "route_segment", "name": "Sabrina Basin to Blue Lake segment 1" }, { "entity_id": "route-segment-sabrina-blue-lake-02", "kind": "route_segment", "name": "Sabrina Basin to Blue Lake segment 2" }, { "entity_id": "route-segment-sabrina-blue-lake-03", "kind": "route_segment", "name": "Sabrina Basin to Blue Lake segment 3" }, { "entity_id": "route-segment-sabrina-blue-lake-04", "kind": "route_segment", "name": "Sabrina Basin to Blue Lake segment 4" }, { "entity_id": "route-segment-treasure-lakes-01", "kind": "route_segment", "name": "Treasure Lakes segment 1" }, { "entity_id": "route-segment-treasure-lakes-02", "kind": "route_segment", "name": "Treasure Lakes segment 2" }, { "entity_id": "route-segment-treasure-lakes-03", "kind": "route_segment", "name": "Treasure Lakes segment 3" }, { "entity_id": "route-segment-treasure-lakes-04", "kind": "route_segment", "name": "Treasure Lakes segment 4" }, { "entity_id": "route-segment-yost-fern-shared-01", "kind": "route_segment", "name": "Yost and Fern shared segment 1" }, { "entity_id": "route-segment-yost-fern-shared-02", "kind": "route_segment", "name": "Yost and Fern shared segment 2" }, { "entity_id": "route-segment-yost-lake-01", "kind": "route_segment", "name": "Yost Lake branch segment 1" }, { "entity_id": "route-segment-yost-lake-02", "kind": "route_segment", "name": "Yost Lake branch segment 2" }, { "entity_id": "route-segment-yost-lake-03", "kind": "route_segment", "name": "Yost Lake branch segment 3" }, { "entity_id": "route-segment-yost-lake-04", "kind": "route_segment", "name": "Yost Lake branch segment 4" }, { "entity_id": "route-treasure-lakes", "kind": "route", "name": "Treasure Lakes Trail" }, { "entity_id": "route-yost-lake", "kind": "route", "name": "Yost Lake Trail" }, { "entity_id": "trailhead-lundy-canyon", "kind": "trailhead", "name": "Lundy Canyon Trailhead" }, { "entity_id": "trailhead-mcgee-creek", "kind": "trailhead", "name": "McGee Creek Trailhead" }, { "entity_id": "trailhead-mosquito-flat", "kind": "trailhead", "name": "Mosquito Flat Trailhead" }, { "entity_id": "trailhead-north-lake-bishop", "kind": "trailhead", "name": "North Lake Trailhead" }, { "entity_id": "trailhead-parker-lake", "kind": "trailhead", "name": "Parker Lake Trailhead" }, { "entity_id": "trailhead-sabrina-basin", "kind": "trailhead", "name": "Sabrina Basin Trailhead" }, { "entity_id": "trailhead-south-lake-bishop", "kind": "trailhead", "name": "South Lake Trailhead" }, { "entity_id": "trailhead-tamarack-lakes-rock-creek", "kind": "trailhead", "name": "Tamarack Lakes Trailhead at Rock Creek Lake" }, { "entity_id": "trailhead-yost-fern", "kind": "trailhead", "name": "Yost and Fern Lakes Trailhead" } ], "history": [ { "action": "ADD", "change_set_id": "wp-20260924-eastern-sierra-foliage-route-depth", "evidence_refs": [], "knowledge_gap_refs": [], "path": "canonical/v0/sources/source-usgs-national-digital-trails-eastern-sierra-20260924.json", "reason": "Add official geometry and distance-bearing topology for priority Eastern Sierra foliage hikes.", "record_id": "source-usgs-national-digital-trails-eastern-sierra-20260924", "record_type": "source", "summary": "Add route-complete official topology for Parker and Heart Lakes, a sourced two-mile Convict Lake choice, and an explicit unclosed shore-trail topology gap." } ], "navigation": { "next_id": "source-usgs-national-digital-trails-rock-creek-20260923", "position": 580, "previous_id": "source-usgs-highest-lowest-elevations", "total": 587 }, "observations": [ { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-lamarck-treasure-20260925.geojson", "0115cb49dce274295bcea333edab310621738d6284ebb75aa76d942e86bb7206" ], "content": "The bounded National Digital Trails extract contains five connected LAMARCK LAKES features after the initial shared Piute Pass segment, ending beside Upper Lamarck Lake, and four connected South Lake features consisting of three BISHOP PASS features followed by the TREASURE LAKES branch. The selected public-domain features are retained in a versioned snapshot with their source length fields and identifiers.", "observation_id": "observation-usgs-bishop-creek-lamarck-treasure-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T08:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/usgs-bishop-creek-routes-20260924.geojson", "abe24426d95f9c8367959b69bf0b655a1aaca4bbb1c48ec6b542709bd0358f45" ], "content": "A bounded National Digital Trails query returned four connected Sabrina Basin features between the Lake Sabrina trailhead and the GNIS Blue Lake point, plus three connected Piute Pass features between the North Lake trailhead and the GNIS Piute Pass point. Seven selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-bishop-creek-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T22:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-access-connectors-20260925.geojson", "bd479aa6c98a9ee32914499758ff0951e0730b025cc113a937e2a2f53e07c972" ], "content": "The National Digital Trails service publishes the named CONVICT HIKER PARKING feature as a 0.44399712-mile unpaved-native trail. Its south endpoint exactly matches the shared endpoint of reviewed Convict Lake Loop segments 2 and 3.", "observation_id": "observation-usgs-convict-hiker-parking-connector-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T19:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/usgs-eastern-sierra-foliage-routes-20260924.geojson", "b5f952648b55904717bd3279ec70ef0d6b8d590049a061ef4a16969428bb4c9f" ], "content": "A bounded National Digital Trails query returned connected USFS-originated, distance-bearing features for Parker Lake and Heart Lake, plus an approximately two-mile named Convict Lake Loop shore-trail component whose endpoints do not close. Fourteen selected public-domain features are retained in a versioned snapshot.", "observation_id": "observation-usgs-eastern-sierra-foliage-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T07:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/eastern-sierra-trailhead-points-20260925.geojson", "ea8e63ced14acdff52ace60f067deef10538830e224e1e853be069f8aba74968" ], "content": "Reviewed National Digital Trails features place evidenced route endpoints at the Parker Lake, McGee Creek, Tamarack Lakes, Mosquito Flat, North Lake, Sabrina Basin, South Lake, Yost/Fern, Upper Rock Creek/East Fork, and Lundy Canyon access identities. The Lundy endpoint is independently corroborated by a named OpenStreetMap trailhead point approximately ten meters away.", "observation_id": "observation-usgs-eastern-sierra-trailhead-endpoints-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T13:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/usgs-june-lake-yost-fern-routes-20260924.geojson", "f30e94212d25790e766c88b6a5914779bf381c3d19ef7a3e79a1ecdbfe10170b" ], "content": "Ten selected public-domain trail features form a connected Yost/Fern network: two shared features lead from the retained dataset entry to the branch, four continue to Fern Lake, and four continue to Yost Lake. The retained source-field distances do not fully agree with the separately published USFS hiking-guide distances.", "observation_id": "observation-usgs-june-lake-yost-fern-routes-20260924", "observed_at": null, "observer": "", "retrieved_at": "2026-09-24T21:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson", "5358db1bac85e9aa2db4dca13afcdae6ffb354e305c3a76976276eb95de642fc" ], "content": "A bounded public-domain National Digital Trails extract contains a connected 14.253-mile McGee Pass mainline from the McGee Creek trailhead corridor toward McGee Pass and a connected 2.100-mile lower Lundy Canyon component. The Lundy dataset component does not reach the separately published 20 Lakes Basin endpoint.", "observation_id": "observation-usgs-mcgee-lundy-routes-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T02:30:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, { "artifact_refs": [ "geometry/v0/snapshots/usgs-mcgee-lundy-routes-20260925.geojson" ], "content": "The first six connected MCGEE PASS features form a 0.97791982-mile prefix from the McGee Creek trailhead. The county-published three-mile beaver-pond destination falls within the following 2.84525413-mile source feature, so the official feature cannot be assigned wholly to the short route and is not split without a source-backed pond coordinate.", "observation_id": "observation-usgs-mcgee-short-route-prefix-20260925", "observed_at": null, "observer": "", "retrieved_at": "2026-09-25T09:00:00+00:00", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ], "record": { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" }, "record_type": "source", "related_records": [], "sources": [ { "locator": "https://partnerships.nationalmap.gov/arcgis/rest/services/USGSTrails/MapServer/0", "publisher": "U.S. Geological Survey / U.S. Forest Service", "source_id": "source-usgs-national-digital-trails-eastern-sierra-20260924" } ] }