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    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-20409",
      "kind": "route_segment",
      "name": "Alder Creek Trail segment 20409"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-20654",
      "kind": "route_segment",
      "name": "Guardians of the Grove Loop Trail segment 20654"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-21647",
      "kind": "route_segment",
      "name": "Big Trees Loop Trail segment 21647"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-21664",
      "kind": "route_segment",
      "name": "Guardians of the Grove Loop Trail segment 21664"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-21874",
      "kind": "route_segment",
      "name": "Guardians of the Grove Loop Trail segment 21874"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-21961",
      "kind": "route_segment",
      "name": "Big Trees Loop Trail segment 21961"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-22364",
      "kind": "route_segment",
      "name": "Mariposa Grove Road segment 22364"
    },
    {
      "entity_id": "route-segment-yosemite-wawona-mariposa-nps-22788",
      "kind": "route_segment",
      "name": "Wawona Swinging Bridge Trail segment 22788"
    },
    {
      "entity_id": "route-segment-yosemite-west-tioga-nps-18552",
      "kind": "route_segment",
      "name": "Lukens Lake Trail reviewed segment"
    },
    {
      "entity_id": "route-segment-yosemite-west-tioga-nps-19452",
      "kind": "route_segment",
      "name": "May Lake Trail reviewed segment"
    },
    {
      "entity_id": "route-swinging-bridge-wawona",
      "kind": "route",
      "name": "Swinging Bridge (Wawona)"
    },
    {
      "entity_id": "route-washburn-trail-mariposa-access",
      "kind": "route",
      "name": "Washburn Trail Access to Mariposa Grove"
    },
    {
      "entity_id": "route-wawona-meadow-loop",
      "kind": "route",
      "name": "Wawona Meadow Loop"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260923-cinder-route-geometry-pilot",
      "evidence_refs": [
        "evidence-route-segment-cinder-trailhead-nobles-junction-nps-geometry",
        "evidence-route-segment-cinder-nobles-junction-base-fork-nps-geometry",
        "evidence-route-segment-cinder-base-fork-summit-nps-geometry"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-nps-public-trails-feature-service.json",
      "reason": "Reference the reviewed NPS source-geometry snapshot for the published Cinder Cone approach so consumers can reproduce its map without live network access.",
      "record_id": "source-nps-public-trails-feature-service",
      "record_type": "source",
      "summary": "Publish the reviewed Cinder Cone route-geometry snapshot references for reproducible maps."
    }
  ],
  "navigation": {
    "next_id": "source-nps-seki-high-sierra-trail",
    "position": 219,
    "previous_id": "source-nps-public-pois-feature-service",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-lavo-cinder-cone-approach-20260923.geojson",
        "sha256:50d218a1cec59453ce4e12aa84a9a0f9768914c10faa715e307b32db764c4b6a"
      ],
      "content": "The NPS Public Trails FeatureServer returned one exact endpoint-matched public trail LineString for each of the three already-published Cinder Cone summit approach segments. All three are identified as existing trails. Mapping method, map source, source date, and XY accuracy are unknown for these features; the geometry is planning evidence and is not represented as navigation-grade.",
      "observation_id": "observation-nps-public-trails-cinder-cone-20260923",
      "observed_at": null,
      "observer": "Wayproof official geometry service review",
      "retrieved_at": "2026-09-23T17:30:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-yose-glacier-point-route-features-20260926.geojson"
      ],
      "content": "Reviewed NPS Public Trails features provide exact shared endpoints for the Sentinel Dome, Taft Point, and McGurk Meadow paths selected against the official Glacier Point Road trail map.",
      "observation_id": "observation-nps-public-trails-glacier-point-20260926",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-26T00:00:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-yose-hetch-hetchy-route-features-20260926.geojson"
      ],
      "content": "Reviewed NPS Public Trails features provide exact shared endpoints for the Wapama Falls shoreline chain and Poopenaut Valley Trail selected against the official Hetch Hetchy map.",
      "observation_id": "observation-nps-public-trails-hetch-hetchy-20260926",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-26T00:00:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-yose-tuolumne-route-features-20260925.geojson"
      ],
      "content": "Reviewed NPS Public Trails features provide the displayed line geometry and source feature identifiers for nine Tuolumne day-hike graphs selected against the official map.",
      "observation_id": "observation-nps-public-trails-tuolumne-20260925",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-25T00:00:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-yose-wawona-mariposa-route-features-20260926.geojson"
      ],
      "content": "Reviewed NPS Public Trails features identify exact segment endpoints for eight unbranched named Wawona and Mariposa Grove corridors; route membership follows the official trail names already described by NPS route pages. Chilnualna Falls remains excluded because its named dataset features branch and do not establish one mainline.",
      "observation_id": "observation-nps-public-trails-wawona-mariposa-20260926",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-26T00:00:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-yose-west-tioga-route-features-20260926.geojson"
      ],
      "content": "Reviewed NPS Public Trails features identify the complete named May Lake Trail and Lukens Lake Trail geometries selected against the official NPS day-hike descriptions.",
      "observation_id": "observation-nps-public-trails-west-tioga-20260926",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-26T00:00:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/nps-yose-valley-route-features-20260926.geojson"
      ],
      "content": "Reviewed NPS Public Trails features provide official line geometry and exact shared endpoints for Four Mile Trail, Yosemite Falls Trail, the John Muir Trail, and Mist Trail in Yosemite Valley.",
      "observation_id": "observation-nps-public-trails-yosemite-valley-20260926",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-26T00:00:00+00:00",
      "source_id": "source-nps-public-trails-feature-service"
    }
  ],
  "record": {
    "locator": "https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_Trails/FeatureServer/0",
    "publisher": "National Park Service",
    "source_id": "source-nps-public-trails-feature-service"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_Trails/FeatureServer/0",
      "publisher": "National Park Service",
      "source_id": "source-nps-public-trails-feature-service"
    }
  ]
}