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Matched against official trail maps; source lengths describe the entire original feature. 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Source object/global IDs and original attributes are preserved in the snapshot; map and prose independently establish topology.", "observation_id": "observation-taboose-trail-geometry", "observed_at": null, "observer": "Wayproof primary-source text, table and visual map review", "retrieved_at": "2026-10-06T21:40:00+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" } ] }, { "claim": { "claim_id": "claim-taboose-trailhead-display-point", "evidence_ids": [ "evidence-taboose-trailhead-display-point" ], "predicate": "reviewed_display_coordinate", "spatial_scope_ids": [ "scope-trailhead-taboose-pass" ], "subject_id": "trailhead-taboose-pass", "temporal_scope": null, "value": { "coordinate_reference_system": "EPSG:4326", "latitude": 37.009548972348696, "longitude": 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"entity_id": "route-segment-emigrant-western-powell-spur", "kind": "route_segment", "name": "Powell Spur" }, { "entity_id": "route-segment-emigrant-western-south-chewing", "kind": "route_segment", "name": "South Chewing" }, { "entity_id": "route-segment-taboose-trailhead-pass", "kind": "route_segment", "name": "Taboose trailhead to Taboose Pass" }, { "entity_id": "route-taboose-pass", "kind": "route", "name": "Taboose Pass Trail" }, { "entity_id": "trailhead-taboose-pass", "kind": "trailhead", "name": "Taboose Pass Trailhead" } ], "history": [ { "action": "ADD", "change_set_id": "wp-20261006-emigrant-crabtree-geometry", "evidence_refs": [], "knowledge_gap_refs": [], "path": "canonical/v0/sources/source-usfs-emigrant-nfs-trail-geometry.json", "reason": "Attach reviewed federal display geometry without changing graph or mileage.", "record_id": "source-usfs-emigrant-nfs-trail-geometry", "record_type": "source", "summary": "Make the existing Crabtree lake approaches geographically drawable with reviewed USFS vertices and explicit display limits." } ], "navigation": { "next_id": "source-usfs-emigrant-northern-road-alert", "position": 538, "previous_id": "source-usfs-emigrant-mileage-table", "total": 587 }, "observations": [ { "artifact_refs": [], "content": "USFS BOURLAND/CHAIN LAKES 19E13, object 9431238, globalid {6AA93CCD-928F-4800-99B4-57EBAAD96031}; complete contiguous feature, reviewed against map/description. Coordinates are not a surveyed parking point.", "observation_id": "observation-emigrant-completion-bourland-geometry", "observed_at": null, "observer": "Wayproof primary-source, map and source-feature review", "retrieved_at": "2026-10-06T20:36:35+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS LEAVITT LAKE 22071, object 9502910, globalid {42DC94DD-35EB-47EB-94A1-93D4B419FC1E}; complete contiguous feature, reviewed against map/description. Coordinates are not a surveyed parking point.", "observation_id": "observation-emigrant-completion-leavitt-1-geometry", "observed_at": null, "observer": "Wayproof primary-source, map and source-feature review", "retrieved_at": "2026-10-06T20:36:35+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS LEAVITT LAKE 22071, object 9484495, globalid {E5A7C4C5-DC1B-454D-8FEB-C94457F27C9D}; complete contiguous feature, reviewed against map/description. Coordinates are not a surveyed parking point.", "observation_id": "observation-emigrant-completion-leavitt-2-geometry", "observed_at": null, "observer": "Wayproof primary-source, map and source-feature review", "retrieved_at": "2026-10-06T20:36:35+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS LEAVITT LAKE 22071, object 9431483, globalid {9628D494-9A69-4CF2-B3C5-18143067A539}; complete contiguous feature, reviewed against map/description. Coordinates are not a surveyed parking point.", "observation_id": "observation-emigrant-completion-leavitt-3-geometry", "observed_at": null, "observer": "Wayproof primary-source, map and source-feature review", "retrieved_at": "2026-10-06T20:36:35+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS LEAVITT LAKE 22071, object 9431503, globalid {D4A35CE8-4AF0-4BE1-8BD7-120547238792}; complete contiguous feature, reviewed against map/description. Coordinates are not a surveyed parking point.", "observation_id": "observation-emigrant-completion-leavitt-4-geometry", "observed_at": null, "observer": "Wayproof primary-source, map and source-feature review", "retrieved_at": "2026-10-06T20:36:35+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS LEAVITT LAKE 22071, object 9475574, globalid {758FC520-C0F7-478D-A9C3-010B4EA91678}; complete contiguous feature, reviewed against map/description. Coordinates are not a surveyed parking point.", "observation_id": "observation-emigrant-completion-leavitt-5-geometry", "observed_at": null, "observer": "Wayproof primary-source, map and source-feature review", "retrieved_at": "2026-10-06T20:36:35+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "Public National Forest System Trails layer, feature 9430557, globalid {8497BEEB-8635-4A89-8352-B24C998130DD}, trail 19E09 BEAR LAKE: reviewed EPSG:4326 source vertices 0 through 164 are retained for display. Source segment_length 1 and gis_miles 0.9720000000000001 describe the original feature, not a computed length for this slice. Coordinate accuracy and current field condition are not established by retrieval.", "observation_id": "observation-emigrant-geometry-bear-spur", "observed_at": null, "observer": "Wayproof named-feature and official-map review", "retrieved_at": "2026-10-06T00:09:34+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "Public National Forest System Trails layer, feature 9430618, globalid {1D2CDA88-08B4-4846-B5CD-A4ECF893054B}, trail 20E16 CRABTREE: reviewed EPSG:4326 source vertices 836 through 806 are retained for display. Source segment_length 10.1 and gis_miles 9.942 describe the original feature, not a computed length for this slice. 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Coordinate accuracy and current field condition are not established by retrieval.", "observation_id": "observation-emigrant-geometry-pine-valley-camp", "observed_at": null, "observer": "Wayproof named-feature and official-map review", "retrieved_at": "2026-10-06T00:09:34+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "Public National Forest System Trails layer, feature 9428086, globalid {DD41DD87-9AAE-4FE1-B078-0427EEE709F1}, trail 20E16 CRABTREE: reviewed EPSG:4326 source vertices 182 through 172 are retained for display. Source segment_length 2.232 and gis_miles 2.231 describe the original feature, not a computed length for this slice. Coordinate accuracy and current field condition are not established by retrieval.", "observation_id": "observation-emigrant-geometry-start-lake-valley", "observed_at": null, "observer": "Wayproof named-feature and official-map review", "retrieved_at": "2026-10-06T00:09:34+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9430353, globalid {B94AF8F8-6909-420D-B63C-565E856CE3B3}, 20E15 COOPER MEADOW; reviewed inclusive normalized vertices 0–422. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-coyote-cooper-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9430469, globalid {4462AC9E-FF7C-4BFB-A0EC-3155C06BBBB0}, 20E08 EAGLE CREEK; reviewed inclusive normalized vertices 0–77. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-eagle-pass-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9430941, globalid {E21E03C8-A491-47B2-B7D9-DFFB02C1F287}, 20E08 EAGLE CREEK; reviewed inclusive normalized vertices 254–438. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-eagle-start-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9501224, globalid {A727D99A-D0CF-45FC-A408-A94FA4611519}, 2000 PCT: SONORA PASS - DOROTHY LK; reviewed inclusive normalized vertices 0–60. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-pct-south-1-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9510733, globalid {1BDAB4FE-E8B1-43D0-8626-53069B960311}, 2000 PCT: SONORA PASS - DOROTHY LK; reviewed inclusive normalized vertices 0–560. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-pct-south-2-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9513460, globalid {1DCEF719-C6FD-4610-80C5-0CA02903061C}, 2000 PCT: SONORA PASS - DOROTHY LK; reviewed inclusive normalized vertices 0–39. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-pct-south-3-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9511588, globalid {6B0FA99D-C3DC-4A5C-83C8-CD1EF2FF0FED}, 2000 PCT: SONORA PASS - DOROTHY LK; reviewed inclusive normalized vertices 0–781. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-pct-south-4-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9502156, globalid {93AD03DF-A458-4275-8A64-89834337C317}, 2000 PCT: SONORA PASS - DOROTHY LK; reviewed inclusive normalized vertices 0–587. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-pct-south-5-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails object 9428140, globalid {7D5C8931-FE33-4617-B426-1AB1394BD898}, 19E31 WATERHOUSE LAKE; reviewed inclusive normalized vertices 0–147. Endpoint assignments are descriptive and source lengths apply to the original feature.", "observation_id": "observation-emigrant-northern-waterhouse-geometry", "observed_at": null, "observer": "Wayproof primary-source text, geospatial map and named-feature review", "retrieved_at": "2026-10-06T15:14:14+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9430618, globalid {1D2CDA88-08B4-4846-B5CD-A4ECF893054B}, 20E16 CRABTREE: reviewed inclusive normalized source vertices 806 through 477. 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-bear-groundhog-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9431555, globalid {EF38ACD6-5434-4D6D-951B-0409DCE1EC92}, 20E17 BELL MEADOW: reviewed inclusive normalized source vertices 0 through 343. 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-bell-pine-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9505484, globalid {A67C6A39-1A55-4D55-B9C7-AFD31CBE40F7}, 20E14 BURST ROCK: reviewed inclusive normalized source vertices 0 through 73. 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-burst-powell-junction-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9429611, globalid {0FCAEB78-86BA-4488-8695-1E024CD7147E}, 20E98 GEM LAKE: reviewed inclusive normalized source vertices 71 through 40. 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-gem-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9429323, globalid {C2BC6336-47AF-4373-BBF9-B3E9BD88D532}, 20E14 BURST ROCK: reviewed inclusive normalized source vertices 0 through 67. 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-gianelli-burst-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9430618, globalid {1D2CDA88-08B4-4846-B5CD-A4ECF893054B}, 20E16 CRABTREE: reviewed inclusive normalized source vertices 477 through 257. 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-groundhog-gem-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" }, { "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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9430389, globalid {DF0AD790-4CE3-4F4D-8658-BD614F3D7FF7}, 19E21 LAKE VALLEY: reviewed inclusive normalized source vertices 0 through 167. 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-lake-valley-lower-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9429539, globalid {462C358A-F41E-4870-8D43-46F953769424}, 19E21 LAKE VALLEY: reviewed inclusive normalized source vertices 267 through 200. 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-north-chewing-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" }, { "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" }, { "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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9505484, globalid {A67C6A39-1A55-4D55-B9C7-AFD31CBE40F7}, 20E14 BURST ROCK: reviewed inclusive normalized source vertices 73 through 290. 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-powell-lake-valley-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9430968, globalid {C539E29C-748A-4018-821E-D53108F78B61}, 20E14A POWELL LAKE SPUR: reviewed inclusive normalized source vertices 0 through 22. 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-powell-spur-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" }, { "artifact_refs": [], "content": "USFS National Forest System Trails feature 9429539, globalid {462C358A-F41E-4870-8D43-46F953769424}, 19E21 LAKE VALLEY: reviewed inclusive normalized source vertices 0 through 200. 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-south-chewing-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" }, { "artifact_refs": [], "content": "USFS 3304 source attributes in connected order: segment_length 0.018, 2.3639, 1.7595, 3.4732; gis_miles 0.019, 2.243, 1.704, 3.316; terminal emp 7.6146. These differ from the approximate 6.5-mile guide and are not silently substituted.", "observation_id": "observation-taboose-dataset-lengths", "observed_at": null, "observer": "Wayproof primary-source text, table and visual map review", "retrieved_at": "2026-10-06T21:40:00+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS named 3304 chain pass endpoint matched against the Independence Area Trails map; retained unmodified as a display point, not a surveyed facility position.", "observation_id": "observation-taboose-pass-display-point", "observed_at": null, "observer": "Wayproof primary-source text, table and visual map review", "retrieved_at": "2026-10-06T21:40:00+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS National Forest System Trails, four complete TABOOSE PASS 3304 features: exact shared endpoints form one trailhead-to-pass display chain. Source object/global IDs and original attributes are preserved in the snapshot; map and prose independently establish topology.", "observation_id": "observation-taboose-trail-geometry", "observed_at": null, "observer": "Wayproof primary-source text, table and visual map review", "retrieved_at": "2026-10-06T21:40:00+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" }, { "artifact_refs": [], "content": "USFS named 3304 chain trailhead endpoint matched against the Independence Area Trails map; retained unmodified as a display point, not a surveyed facility position.", "observation_id": "observation-taboose-trailhead-display-point", "observed_at": null, "observer": "Wayproof primary-source text, table and visual map review", "retrieved_at": "2026-10-06T21:40:00+00:00", "source_id": "source-usfs-emigrant-nfs-trail-geometry" } ], "record": { "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" }, "record_type": "source", "related_records": [], "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" } ] }