{ "answerability": "evidence_backed_claims_available", "claims": [ { "claim": { "claim_id": "claim-emigrant-western-grouse-approach-topology", "evidence_ids": [ "evidence-emigrant-western-grouse-approach-topology" ], "predicate": "mapped_route_connector", "spatial_scope_ids": [ "scope-route-emigrant-bell-meadow-grouse-lake", "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-segment-emigrant-western-grouse-approach", "temporal_scope": null, "value": { "distance_miles": null, "distance_status": "not_printed", "end_node_id": "route-node-emigrant-grouse-north-approach", "route_role": "official_mainline", "start_node_id": "route-node-emigrant-grouse-display-break", "support": "20E17 continues along the north side of Grouse; lake detail map labels To Crabtree Trailhead" } }, "evidence": [ { "claim_id": "claim-emigrant-western-grouse-approach-topology", "evidence_id": "evidence-emigrant-western-grouse-approach-topology", "notes": "", "observation_id": "observation-emigrant-western-grouse-approach-topology", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "2010 overview western panel, corroborated by lake detail maps and named USFS trail features: 20E17 continues along the north side of Grouse; lake detail map labels To Crabtree Trailhead. Segmentation at source breaks and chosen trail approach vertices is descriptive, not a claim of an official named junction. No atomic mileage assigned from cumulative reports or GIS lengths.", "observation_id": "observation-emigrant-western-grouse-approach-topology", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-grouse-camping-map" } ], "sources": [ { "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Grouse%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-grouse-camping-map" } ], "subject": { "entity_id": "route-segment-emigrant-western-grouse-approach", "kind": "route_segment", "name": "Grouse Approach" } }, { "claim": { "claim_id": "claim-emigrant-western-pine-connector-topology", "evidence_ids": [ "evidence-emigrant-western-pine-connector-topology" ], "predicate": "mapped_route_connector", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-segment-emigrant-western-pine-connector", "temporal_scope": null, "value": { "distance_miles": null, "distance_status": "not_printed", "end_node_id": "route-node-emigrant-bell-pine-junction", "route_role": "official_mainline", "start_node_id": "route-node-emigrant-pine-valley-junction", "support": "19E10 connects Crabtree 20E16 to Bell Meadow 20E17 in Pine Valley" } }, "evidence": [ { "claim_id": "claim-emigrant-western-pine-connector-topology", "evidence_id": "evidence-emigrant-western-pine-connector-topology", "notes": "", "observation_id": "observation-emigrant-western-pine-connector-topology", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "2010 overview western panel, corroborated by lake detail maps and named USFS trail features: 19E10 connects Crabtree 20E16 to Bell Meadow 20E17 in Pine Valley. Segmentation at source breaks and chosen trail approach vertices is descriptive, not a claim of an official named junction. No atomic mileage assigned from cumulative reports or GIS lengths.", "observation_id": "observation-emigrant-western-pine-connector-topology", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-overview-map" } ], "sources": [ { "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-overview-map" } ], "subject": { "entity_id": "route-segment-emigrant-western-pine-connector", "kind": "route_segment", "name": "Pine Connector" } }, { "claim": { "claim_id": "claim-emigrant-western-pine-grouse-break-topology", "evidence_ids": [ "evidence-emigrant-western-pine-grouse-break-topology" ], "predicate": "mapped_route_connector", "spatial_scope_ids": [ "scope-route-emigrant-bell-meadow-grouse-lake", "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-segment-emigrant-western-pine-grouse-break", "temporal_scope": null, "value": { "distance_miles": null, "distance_status": "not_printed", "end_node_id": "route-node-emigrant-grouse-display-break", "route_role": "official_mainline", "start_node_id": "route-node-emigrant-bell-pine-junction", "support": "20E17 east from the Pine Valley junction toward Grouse Lake" } }, "evidence": [ { "claim_id": "claim-emigrant-western-pine-grouse-break-topology", "evidence_id": "evidence-emigrant-western-pine-grouse-break-topology", "notes": "", "observation_id": "observation-emigrant-western-pine-grouse-break-topology", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "2010 overview western panel, corroborated by lake detail maps and named USFS trail features: 20E17 east from the Pine Valley junction toward Grouse Lake. Segmentation at source breaks and chosen trail approach vertices is descriptive, not a claim of an official named junction. No atomic mileage assigned from cumulative reports or GIS lengths.", "observation_id": "observation-emigrant-western-pine-grouse-break-topology", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-overview-map" } ], "sources": [ { "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-overview-map" } ], "subject": { "entity_id": "route-segment-emigrant-western-pine-grouse-break", "kind": "route_segment", "name": "Pine Grouse Break" } }, { "claim": { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-conditions" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_status": "unknown", "required": true, "topics": [ "access roads", "trail and crossings", "water", "fire restrictions", "snow and closures" ] } }, "evidence": [ { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_id": "evidence-emigrant-western-crabtree-grouse-conditions", "notes": "", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Forest alert index requires current order and map review. Historical maps do not establish present road, snow, crossing, water, fire or trail status.", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-alerts" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-alerts" } ], "subject": { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" } }, { "claim": { "claim_id": "claim-emigrant-western-grouse-operator-mileage", "evidence_ids": [ "evidence-emigrant-western-grouse-operator-mileage" ], "predicate": "published_approach_distance_report", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "distance_convention": "not explicitly stated", "not_atomic_distance": true, "reported_miles": 4, "source_edition": "unknown", "travel_context": "operator riding destination" } }, "evidence": [ { "claim_id": "claim-emigrant-western-grouse-operator-mileage", "evidence_id": "evidence-emigrant-western-grouse-operator-mileage", "notes": "", "observation_id": "observation-emigrant-western-grouse-operator-mileage", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Aspen Meadow Pack Station destination page reports 4 miles under its Crabtree destination hierarchy. Publication date, precise endpoint and one-way/round-trip convention are not stated; the operator describes riding destinations.", "observation_id": "observation-emigrant-western-grouse-operator-mileage", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-aspen-emigrant-grouse" } ], "sources": [ { "locator": "https://www.aspenmeadowpackstation.com/index.php/adventures-menu/destinations/crabtree-trail-head-menu/grouse-lake-menu", "publisher": "Aspen Meadow Pack Station", "source_id": "source-aspen-emigrant-grouse" } ], "subject": { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" } }, { "claim": { "claim_id": "claim-emigrant-western-grouse-approach-geometry", "evidence_ids": [ "evidence-emigrant-western-grouse-approach-geometry" ], "predicate": "reviewed_route_display_geometry", "spatial_scope_ids": [ "scope-route-emigrant-bell-meadow-grouse-lake", "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-segment-emigrant-western-grouse-approach", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "current_route_status": "unknown; pre-trip check required", "end_coordinate": { "latitude": 38.152425821808905, "longitude": -119.8696170908318 }, "geometry_snapshot": { "feature_id": "usfs-emigrant-western-grouse-approach", "path": "geometry/v0/snapshots/usfs-emigrant-western-routes-20261006.geojson", "sha256": "5cca60fe36da261b084bbd7b258964fee57c6b6a4f02edb166dad0acd7bb71ee" }, "navigation_grade": false, "route_role": "official_mainline", "source_coordinate_accuracy": "unknown", "source_feature_id": 9429412, "source_globalid": "{C7292D7C-0FDE-4FAA-8861-BBB2C417C09A}", "source_vertex_range_inclusive": [ 0, 120 ], "start_coordinate": { "latitude": 38.15593756534284, "longitude": -119.88032173298294 } } }, "evidence": [ { "claim_id": "claim-emigrant-western-grouse-approach-geometry", "evidence_id": "evidence-emigrant-western-grouse-approach-geometry", "notes": "", "observation_id": "observation-emigrant-western-grouse-approach-geometry", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9429412, globalid {C7292D7C-0FDE-4FAA-8861-BBB2C417C09A}, 20E17 BELL MEADOW: reviewed inclusive normalized source vertices 0 through 120. Matched against official trail maps; source lengths describe the entire original feature. No coordinate is snapped and no mileage is computed.", "observation_id": "observation-emigrant-western-grouse-approach-geometry", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T00:09:34+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "sources": [ { "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0", "publisher": "USDA Forest Service", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "subject": { "entity_id": "route-segment-emigrant-western-grouse-approach", "kind": "route_segment", "name": "Grouse Approach" } }, { "claim": { "claim_id": "claim-emigrant-western-pine-connector-geometry", "evidence_ids": [ "evidence-emigrant-western-pine-connector-geometry" ], "predicate": "reviewed_route_display_geometry", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-segment-emigrant-western-pine-connector", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "current_route_status": "unknown; pre-trip check required", "end_coordinate": { "latitude": 38.15820053841584, "longitude": -119.89574140675121 }, "geometry_snapshot": { "feature_id": "usfs-emigrant-western-pine-connector", "path": "geometry/v0/snapshots/usfs-emigrant-western-routes-20261006.geojson", "sha256": "5cca60fe36da261b084bbd7b258964fee57c6b6a4f02edb166dad0acd7bb71ee" }, "navigation_grade": false, "route_role": "official_mainline", "source_coordinate_accuracy": "unknown", "source_feature_id": 9430585, "source_globalid": "{EDD61318-4DB8-4553-B8EC-17DF0A3BD987}", "source_vertex_range_inclusive": [ 0, 146 ], "start_coordinate": { "latitude": 38.165350570701605, "longitude": -119.90071919040176 } } }, "evidence": [ { "claim_id": "claim-emigrant-western-pine-connector-geometry", "evidence_id": "evidence-emigrant-western-pine-connector-geometry", "notes": "", "observation_id": "observation-emigrant-western-pine-connector-geometry", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9430585, globalid {EDD61318-4DB8-4553-B8EC-17DF0A3BD987}, 19E10 PINE VALLEY: reviewed inclusive normalized source vertices 0 through 146. Matched against official trail maps; source lengths describe the entire original feature. No coordinate is snapped and no mileage is computed.", "observation_id": "observation-emigrant-western-pine-connector-geometry", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T00:09:34+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "sources": [ { "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0", "publisher": "USDA Forest Service", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "subject": { "entity_id": "route-segment-emigrant-western-pine-connector", "kind": "route_segment", "name": "Pine Connector" } }, { "claim": { "claim_id": "claim-emigrant-western-pine-grouse-break-geometry", "evidence_ids": [ "evidence-emigrant-western-pine-grouse-break-geometry" ], "predicate": "reviewed_route_display_geometry", "spatial_scope_ids": [ "scope-route-emigrant-bell-meadow-grouse-lake", "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-segment-emigrant-western-pine-grouse-break", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "current_route_status": "unknown; pre-trip check required", "end_coordinate": { "latitude": 38.15593756534284, "longitude": -119.88032173298294 }, "geometry_snapshot": { "feature_id": "usfs-emigrant-western-pine-grouse-break", "path": "geometry/v0/snapshots/usfs-emigrant-western-routes-20261006.geojson", "sha256": "5cca60fe36da261b084bbd7b258964fee57c6b6a4f02edb166dad0acd7bb71ee" }, "navigation_grade": false, "route_role": "official_mainline", "source_coordinate_accuracy": "unknown", "source_feature_id": 9431555, "source_globalid": "{EF38ACD6-5434-4D6D-951B-0409DCE1EC92}", "source_vertex_range_inclusive": [ 343, 436 ], "start_coordinate": { "latitude": 38.158197562416206, "longitude": -119.89573329874952 } } }, "evidence": [ { "claim_id": "claim-emigrant-western-pine-grouse-break-geometry", "evidence_id": "evidence-emigrant-western-pine-grouse-break-geometry", "notes": "", "observation_id": "observation-emigrant-western-pine-grouse-break-geometry", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9431555, globalid {EF38ACD6-5434-4D6D-951B-0409DCE1EC92}, 20E17 BELL MEADOW: reviewed inclusive normalized source vertices 343 through 436. Matched against official trail maps; source lengths describe the entire original feature. No coordinate is snapped and no mileage is computed.", "observation_id": "observation-emigrant-western-pine-grouse-break-geometry", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T00:09:34+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "sources": [ { "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0", "publisher": "USDA Forest Service", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "subject": { "entity_id": "route-segment-emigrant-western-pine-grouse-break", "kind": "route_segment", "name": "Pine Grouse Break" } }, { "claim": { "claim_id": "claim-emigrant-western-crabtree-grouse-profile", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "predicate": "route_description", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_conditions": "unknown", "directionality": "bidirectional mapped trail", "end_node_id": "route-node-emigrant-grouse-north-approach", "endpoint_status": "reviewed trail approach; not lake centroid or campsite", "entry_id": "trailhead-emigrant-crabtree", "name_status": "Wayproof descriptive approach", "objective_id": "waterbody-emigrant-grouse-lake", "source_edition": "2010" } }, "evidence": [ { "claim_id": "claim-emigrant-western-crabtree-grouse-profile", "evidence_id": "evidence-emigrant-western-crabtree-grouse-profile", "notes": "", "observation_id": "observation-emigrant-western-crabtree-grouse-profile", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "2010 Emigrant Wilderness map, western panel: Crabtree to Grouse Lake follows the explicitly drawn trail network. Detailed segment claims retain the reviewed trail numbers and junctions. This is a Wayproof descriptive approach, not an asserted official route name.", "observation_id": "observation-emigrant-western-crabtree-grouse-profile", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-overview-map" } ], "sources": [ { "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-overview-map" } ], "subject": { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" } } ], "entity": { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" }, "gap_details": [ { "claims": [ { "claim": { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-conditions" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_status": "unknown", "required": true, "topics": [ "access roads", "trail and crossings", "water", "fire restrictions", "snow and closures" ] } }, "evidence": [ { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_id": "evidence-emigrant-western-crabtree-grouse-conditions", "notes": "", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Forest alert index requires current order and map review. Historical maps do not establish present road, snow, crossing, water, fire or trail status.", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-alerts" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-alerts" } ] }, { "claim": { "claim_id": "claim-emigrant-western-crabtree-grouse-profile", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "predicate": "route_description", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_conditions": "unknown", "directionality": "bidirectional mapped trail", "end_node_id": "route-node-emigrant-grouse-north-approach", "endpoint_status": "reviewed trail approach; not lake centroid or campsite", "entry_id": "trailhead-emigrant-crabtree", "name_status": "Wayproof descriptive approach", "objective_id": "waterbody-emigrant-grouse-lake", "source_edition": "2010" } }, "evidence": [ { "claim_id": "claim-emigrant-western-crabtree-grouse-profile", "evidence_id": "evidence-emigrant-western-crabtree-grouse-profile", "notes": "", "observation_id": "observation-emigrant-western-crabtree-grouse-profile", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "2010 Emigrant Wilderness map, western panel: Crabtree to Grouse Lake follows the explicitly drawn trail network. Detailed segment claims retain the reviewed trail numbers and junctions. This is a Wayproof descriptive approach, not an asserted official route name.", "observation_id": "observation-emigrant-western-crabtree-grouse-profile", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-overview-map" } ], "sources": [ { "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-overview-map" } ] } ], "entities": [ { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" } ], "history": [ { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [], "knowledge_gap_refs": [ "gap-emigrant-western-crabtree-grouse-planning" ], "path": "canonical/v0/gaps/gap-emigrant-western-crabtree-grouse-planning.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "gap-emigrant-western-crabtree-grouse-planning", "record_type": "gap", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." } ], "navigation": { "next_id": "gap-emigrant-western-gem-mileage", "position": 209, "previous_id": "gap-emigrant-western-crabtree-gem-planning", "total": 299 }, "observations": [ { "artifact_refs": [], "content": "Forest alert index requires current order and map review. Historical maps do not establish present road, snow, crossing, water, fire or trail status.", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-alerts" }, { "artifact_refs": [], "content": "2010 Emigrant Wilderness map, western panel: Crabtree to Grouse Lake follows the explicitly drawn trail network. Detailed segment claims retain the reviewed trail numbers and junctions. This is a Wayproof descriptive approach, not an asserted official route name.", "observation_id": "observation-emigrant-western-crabtree-grouse-profile", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-overview-map" } ], "record": { "gap_id": "gap-emigrant-western-crabtree-grouse-planning", "question": "What remains unverified for Crabtree to Grouse Lake?", "reason": "Approach topology and display geometry are represented; no complete mileage, return itinerary, shoreline circulation, legal individual campsite, drinkable water or current trail clearance is established. Printed destination totals may end at a different point from the descriptive display endpoint. Recheck the route and intended endpoint with the Forest Service.", "related_ids": [ "claim-emigrant-western-crabtree-grouse-profile", "claim-emigrant-western-crabtree-grouse-conditions" ] }, "record_type": "gap", "related_records": [ { "record": { "claim_id": "claim-emigrant-western-crabtree-grouse-profile", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "predicate": "route_description", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_conditions": "unknown", "directionality": "bidirectional mapped trail", "end_node_id": "route-node-emigrant-grouse-north-approach", "endpoint_status": "reviewed trail approach; not lake centroid or campsite", "entry_id": "trailhead-emigrant-crabtree", "name_status": "Wayproof descriptive approach", "objective_id": "waterbody-emigrant-grouse-lake", "source_edition": "2010" } }, "record_id": "claim-emigrant-western-crabtree-grouse-profile", "record_type": "claim" }, { "record": { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-conditions" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_status": "unknown", "required": true, "topics": [ "access roads", "trail and crossings", "water", "fire restrictions", "snow and closures" ] } }, "record_id": "claim-emigrant-western-crabtree-grouse-conditions", "record_type": "claim" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-alerts" }, { "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-overview-map" } ] } ], "history": [ { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [], "knowledge_gap_refs": [], "path": "canonical/v0/entities/route-emigrant-crabtree-grouse-lake.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "route-emigrant-crabtree-grouse-lake", "record_type": "entity", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-grouse-approach-topology" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-grouse-approach-topology.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-grouse-approach-topology", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-pine-connector-topology" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-pine-connector-topology.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-pine-connector-topology", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-pine-grouse-break-topology" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-pine-grouse-break-topology.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-pine-grouse-break-topology", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-crabtree-grouse-conditions" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-crabtree-grouse-conditions.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-crabtree-grouse-conditions", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-grouse-operator-mileage" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-grouse-operator-mileage.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-grouse-operator-mileage", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-grouse-approach-geometry" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-grouse-approach-geometry.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-grouse-approach-geometry", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-pine-connector-geometry" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-pine-connector-geometry.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-pine-connector-geometry", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-pine-grouse-break-geometry" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-pine-grouse-break-geometry.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-pine-grouse-break-geometry", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." }, { "action": "ADD", "change_set_id": "wp-20261006-emigrant-western-coverage", "evidence_refs": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "knowledge_gap_refs": [], "path": "canonical/v0/claims/claim-emigrant-western-crabtree-grouse-profile.json", "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.", "record_id": "claim-emigrant-western-crabtree-grouse-profile", "record_type": "claim", "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities." } ], "journey": [ { "claims": [ { "claim": { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-conditions" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-route-emigrant-crabtree-grouse-lake" ], "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null, "value": { "current_status": "unknown", "required": true, "topics": [ "access roads", "trail and crossings", "water", "fire restrictions", "snow and closures" ] } }, "evidence": [ { "claim_id": "claim-emigrant-western-crabtree-grouse-conditions", "evidence_id": "evidence-emigrant-western-crabtree-grouse-conditions", "notes": "", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Forest alert index requires current order and map review. Historical maps do not establish present road, snow, crossing, water, fire or trail status.", "observation_id": "observation-emigrant-western-crabtree-grouse-conditions", "observed_at": null, "observer": "Wayproof primary-source text, georeferenced map and named-feature review", "retrieved_at": "2026-10-06T07:44:34+00:00", "source_id": "source-usfs-emigrant-alerts" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-alerts" } ], "subject": { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" } } ], "entity": { "entity_id": "route-emigrant-crabtree-grouse-lake", "kind": "route", "name": "Crabtree to Grouse Lake" }, "gaps": [ { "gap_id": "gap-emigrant-western-crabtree-grouse-planning", "question": "What remains unverified for Crabtree to Grouse Lake?", "reason": "Approach topology and display geometry are represented; no complete mileage, return itinerary, shoreline circulation, legal individual campsite, drinkable water or current trail clearance is established. Printed destination totals may end at a different point from the descriptive display endpoint. Recheck the route and intended endpoint with the Forest Service.", "related_ids": [ "claim-emigrant-western-crabtree-grouse-profile", "claim-emigrant-western-crabtree-grouse-conditions" ] } ], "relationships": [], "role": "Selected place" }, { "claims": [ { "claim": { "claim_id": "claim-emigrant-approach-recheck-crabtree", "evidence_ids": [ "evidence-emigrant-approach-recheck-crabtree" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-emigrant-crabtree" ], "subject_id": "trailhead-emigrant-crabtree", "temporal_scope": null, "value": { "required": true, "status": "unknown", "topics": [ "road and trail status", "fire restrictions", "parking and facility availability" ] } }, "evidence": [ { "claim_id": "claim-emigrant-approach-recheck-crabtree", "evidence_id": "evidence-emigrant-approach-recheck-crabtree", "notes": "", "observation_id": "observation-emigrant-approach-recheck-crabtree", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "The forest alert index contains dynamic road and fire orders. Current applicability to Crabtree Trailhead needs individual order and map review; its named access relationship is not an open-status observation.", "observation_id": "observation-emigrant-approach-recheck-crabtree", "observed_at": null, "observer": "Wayproof primary-source review", "retrieved_at": "2026-10-05T22:09:18+00:00", "source_id": "source-usfs-emigrant-alerts" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-alerts" } ], "subject": { "entity_id": "trailhead-emigrant-crabtree", "kind": "trailhead", "name": "Crabtree Trailhead" } } ], "entity": { "entity_id": "trailhead-emigrant-crabtree", "kind": "trailhead", "name": "Crabtree Trailhead" }, "gaps": [ { "gap_id": "gap-emigrant-current-conditions", "question": "Are the selected approach and facilities usable on the trip date?", "reason": "Current road, trail, snow, crossing, water, fire and facility status is unknown. Individual alerts and mapped closures need route-specific matching; the Site Open banner is not route-level clearance.", "related_ids": [ "wilderness-emigrant", "claim-emigrant-conditions-recheck", "claim-emigrant-alerts-recheck", "claim-emigrant-access-recheck", "claim-emigrant-approach-recheck-bell-meadow", "claim-emigrant-approach-recheck-bourland-meadow", "claim-emigrant-approach-recheck-box-springs", "claim-emigrant-approach-recheck-crabtree", "claim-emigrant-approach-recheck-coyote-meadow", "claim-emigrant-approach-recheck-eagle-meadow", "claim-emigrant-approach-recheck-gianelli", "claim-emigrant-approach-recheck-kennedy-meadows", "claim-emigrant-approach-recheck-waterhouse", "claim-emigrant-approach-recheck-sonora-pass" ] } ], "relationships": [ { "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "object_id": "trailhead-emigrant-crabtree", "predicate": "starts_at", "relationship_id": "relationship-emigrant-western-crabtree-grouse-start", "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null } ], "role": "Entry" }, { "claims": [ { "claim": { "claim_id": "claim-emigrant-dogs", "evidence_ids": [ "evidence-emigrant-dogs" ], "predicate": "pet_policy", "spatial_scope_ids": [ "scope-emigrant-wilderness" ], "subject_id": "wilderness-emigrant", "temporal_scope": null, "value": { "county_leash_ordinance": "Tuolumne County; verify details", "direct_control_required": true } }, "evidence": [ { "claim_id": "claim-emigrant-dogs", "evidence_id": "evidence-emigrant-dogs", "notes": "", "observation_id": "observation-emigrant-dogs", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Pet Information: dogs must be under direct control and Tuolumne County has a leash ordinance.", "observation_id": "observation-emigrant-dogs", "observed_at": null, "observer": "Wayproof primary-source review", "retrieved_at": "2026-10-05T22:09:18+00:00", "source_id": "source-usfs-emigrant-access" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/recreation/emigrant-wilderness-highway-108-access", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-access" } ], "subject": { "entity_id": "wilderness-emigrant", "kind": "wilderness", "name": "Emigrant Wilderness" } }, { "claim": { "claim_id": "claim-emigrant-access-recheck", "evidence_ids": [ "evidence-emigrant-access-recheck" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-emigrant-wilderness" ], "subject_id": "wilderness-emigrant", "temporal_scope": null, "value": { "required": true, "topics": [ "access roads", "parking", "trail conditions", "water and facilities", "issuing station operations" ] } }, "evidence": [ { "claim_id": "claim-emigrant-access-recheck", "evidence_id": "evidence-emigrant-access-recheck", "notes": "", "observation_id": "observation-emigrant-access-recheck", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Operational Hours directs visitors to check conditions and weather before travel; named access points do not establish that a road, parking space, water supply or facility will be available.", "observation_id": "observation-emigrant-access-recheck", "observed_at": null, "observer": "Wayproof primary-source review", "retrieved_at": "2026-10-05T22:09:18+00:00", "source_id": "source-usfs-emigrant-access" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/recreation/emigrant-wilderness-highway-108-access", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-access" } ], "subject": { "entity_id": "wilderness-emigrant", "kind": "wilderness", "name": "Emigrant Wilderness" } }, { "claim": { "claim_id": "claim-emigrant-alerts-recheck", "evidence_ids": [ "evidence-emigrant-alerts-recheck" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-emigrant-wilderness" ], "subject_id": "wilderness-emigrant", "temporal_scope": null, "value": { "current_route_access": "unknown", "required": true, "topics": [ "road closures and seasonal access", "current fire orders", "occupancy rules" ] } }, "evidence": [ { "claim_id": "claim-emigrant-alerts-recheck", "evidence_id": "evidence-emigrant-alerts-recheck", "notes": "", "observation_id": "observation-emigrant-alerts-recheck", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Alerts index reviewed October 5, 2026 includes fire restrictions, occupancy limits and road closure orders, including a portion of 4N12 and Cherry access road 1N98. Exact applicability and current status require individual order/map review.", "observation_id": "observation-emigrant-alerts-recheck", "observed_at": null, "observer": "Wayproof primary-source review", "retrieved_at": "2026-10-05T22:09:18+00:00", "source_id": "source-usfs-emigrant-alerts" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-alerts" } ], "subject": { "entity_id": "wilderness-emigrant", "kind": "wilderness", "name": "Emigrant Wilderness" } }, { "claim": { "claim_id": "claim-emigrant-conditions-recheck", "evidence_ids": [ "evidence-emigrant-conditions-recheck" ], "predicate": "pretrip_current_conditions_recheck", "spatial_scope_ids": [ "scope-emigrant-wilderness" ], "subject_id": "wilderness-emigrant", "temporal_scope": null, "value": { "required": true, "topics": [ "fire restrictions", "smoke", "snow", "weather and avalanche conditions" ] } }, "evidence": [ { "claim_id": "claim-emigrant-conditions-recheck", "evidence_id": "evidence-emigrant-conditions-recheck", "notes": "", "observation_id": "observation-emigrant-conditions-recheck", "stance": "supports" } ], "observations": [ { "artifact_refs": [], "content": "Current Conditions links to current fire restrictions, fire/smoke, avalanche forecasts and regional snow depth. These are pre-trip checking sources, not an observation of open roads or safe trails.", "observation_id": "observation-emigrant-conditions-recheck", "observed_at": null, "observer": "Wayproof primary-source review", "retrieved_at": "2026-10-05T22:09:18+00:00", "source_id": "source-usfs-emigrant-conditions" } ], "sources": [ { "locator": "https://www.fs.usda.gov/r05/stanislaus/conditions", "publisher": "USDA Forest Service, Stanislaus National Forest", "source_id": "source-usfs-emigrant-conditions" } ], "subject": { "entity_id": "wilderness-emigrant", "kind": "wilderness", "name": "Emigrant Wilderness" } } ], "entity": { "entity_id": "wilderness-emigrant", "kind": "wilderness", "name": "Emigrant Wilderness" }, "gaps": [ { "gap_id": "gap-emigrant-current-conditions", "question": "Are the selected approach and facilities usable on the trip date?", "reason": "Current road, trail, snow, crossing, water, fire and facility status is unknown. Individual alerts and mapped closures need route-specific matching; the Site Open banner is not route-level clearance.", "related_ids": [ "wilderness-emigrant", "claim-emigrant-conditions-recheck", "claim-emigrant-alerts-recheck", "claim-emigrant-access-recheck", "claim-emigrant-approach-recheck-bell-meadow", "claim-emigrant-approach-recheck-bourland-meadow", "claim-emigrant-approach-recheck-box-springs", "claim-emigrant-approach-recheck-crabtree", "claim-emigrant-approach-recheck-coyote-meadow", "claim-emigrant-approach-recheck-eagle-meadow", "claim-emigrant-approach-recheck-gianelli", "claim-emigrant-approach-recheck-kennedy-meadows", "claim-emigrant-approach-recheck-waterhouse", "claim-emigrant-approach-recheck-sonora-pass" ] }, { "gap_id": "gap-emigrant-route-topology", "question": "How do the selected trailheads connect to lakes, passes and each other?", "reason": "The eight western approaches from Crabtree, Gianelli, Bell Meadow and six northern approaches are joined by five bounded southern/eastern approaches: Box Springs–Chain Lakes, Bourland mapped terminus, Shingle Springs–Kibbie/Huckleberry and Leavitt Lake–PCT junction. Bourland continuation, Kennedy parking/branch geometry, southern display gaps, deeper lake/pass branches, returns and individual facility spurs remain unresolved; no wilderness-wide route completeness is claimed.", "related_ids": [ "wilderness-emigrant", "claim-emigrant-access-recheck" ] }, { "gap_id": "gap-emigrant-boundary-geometry", "question": "What boundary precision and exact jurisdiction remain unverified?", "reason": "Reviewed PAD-US designated-wilderness display geometry now matches Emigrant Wilderness, OBJECTID 237112. Survey/legal precision, current amendments and exact route-side jurisdiction remain unverified. Polygon overlap does not create access, containment or permission.", "related_ids": [ "wilderness-emigrant", "claim-emigrant-access-recheck" ] }, { "gap_id": "gap-emigrant-facility-inventory", "question": "What camps, toilets, water sources and parking are available along the approach?", "reason": "Coverage includes historical trailhead facilities, Baker/Deadman/Cherry Valley campground reports, 45 individually reviewed Cherry Valley listing pages and Kennedy cabin inventory. Conflicting water/toilet/fee reports, omitted Cherry Valley site 001, individual Baker/Deadman sites, current availability, remote camps and facility connectors remain unresolved. Inventory is not a reservation or operating guarantee.", "related_ids": [ "wilderness-emigrant", "claim-emigrant-access-recheck" ] } ], "relationships": [ { "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "object_id": "wilderness-emigrant", "predicate": "traverses", "relationship_id": "relationship-emigrant-western-crabtree-grouse-land", "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null } ], "role": "Traversed place" } ], "knowledge_gaps": [ { "gap_id": "gap-emigrant-western-crabtree-grouse-planning", "question": "What remains unverified for Crabtree to Grouse Lake?", "reason": "Approach topology and display geometry are represented; no complete mileage, return itinerary, shoreline circulation, legal individual campsite, drinkable water or current trail clearance is established. Printed destination totals may end at a different point from the descriptive display endpoint. Recheck the route and intended endpoint with the Forest Service.", "related_ids": [ "claim-emigrant-western-crabtree-grouse-profile", "claim-emigrant-western-crabtree-grouse-conditions" ] } ], "reference_evidence": [], "relationships": [ { "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "object_id": "route-emigrant-crabtree-grouse-lake", "predicate": "approached_via", "relationship_id": "relationship-emigrant-western-crabtree-grouse-objective", "subject_id": "waterbody-emigrant-grouse-lake", "temporal_scope": null }, { "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "object_id": "route-node-emigrant-grouse-north-approach", "predicate": "ends_at", "relationship_id": "relationship-emigrant-western-crabtree-grouse-end", "subject_id": "route-emigrant-crabtree-grouse-lake", "temporal_scope": null }, { "evidence_ids": [ "evidence-emigrant-western-crabtree-grouse-profile" ], "object_id": "route-emigrant-crabtree-grouse-lake", "predicate": 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