{
  "answerability": "evidence_backed_claims_available",
  "claims": [
    {
      "claim": {
        "claim_id": "claim-cinder-cone-official-trailhead-coordinate",
        "evidence_ids": [
          "evidence-cinder-cone-official-trailhead-coordinate"
        ],
        "predicate": "official_mapped_coordinate",
        "spatial_scope_ids": [
          "scope-route-cinder-cone-trail"
        ],
        "subject_id": "trailhead-cinder-cone-butte-lake",
        "temporal_scope": null,
        "value": {
          "alternate_name": "Butte Lake West Trailhead",
          "latitude": 40.563788,
          "longitude": -121.30221,
          "map_id": "40993263-b62b-4118-94c1-983fd352e367",
          "parking_is_separate_mapped_entity": true
        }
      },
      "evidence": [
        {
          "claim_id": "claim-cinder-cone-official-trailhead-coordinate",
          "evidence_id": "evidence-cinder-cone-official-trailhead-coordinate",
          "notes": "",
          "observation_id": "observation-nps-lassen-cinder-cone-map-20210331-20260923",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The public NPS Cinder Cone embedded-map configuration identifies the Cinder Cone Trailhead (alternate name Butte Lake West Trailhead) through its NPS Carto overlay at latitude 40.563788 and longitude -121.302210. It separately identifies Butte Lake Parking, so the trailhead and parking lot are not silently collapsed.",
          "observation_id": "observation-nps-lassen-cinder-cone-map-20210331-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T16:00:00+00:00",
          "source_id": "source-nps-lassen-cinder-cone-map-20210331"
        }
      ],
      "sources": [
        {
          "locator": "https://www.nps.gov/maps/builder/configs/40993263-b62b-4118-94c1-983fd352e367.jsonp",
          "publisher": "National Park Service",
          "source_id": "source-nps-lassen-cinder-cone-map-20210331"
        }
      ],
      "subject": {
        "entity_id": "trailhead-cinder-cone-butte-lake",
        "kind": "trailhead",
        "name": "Cinder Cone trailhead at Butte Lake"
      }
    }
  ],
  "entity": {
    "entity_id": "trailhead-cinder-cone-butte-lake",
    "kind": "trailhead",
    "name": "Cinder Cone trailhead at Butte Lake"
  },
  "gap_details": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260923-lassen-destinations-route-depth",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/entities/trailhead-cinder-cone-butte-lake.json",
      "reason": "Publish official-source Lassen destination identities, named hiking routes, evidenced starts, route profiles, and route-condition rechecks without inventing segment topology.",
      "record_id": "trailhead-cinder-cone-butte-lake",
      "record_type": "entity",
      "summary": "Add official-source Lassen destinations, named hiking routes, evidenced trailheads, route profiles, and route-condition rechecks while preserving the remaining segment-topology gap."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260923-lassen-cinder-cone-route-graph",
      "evidence_refs": [
        "evidence-cinder-trailhead-nobles-junction",
        "evidence-cinder-nobles-junction-base-fork",
        "evidence-cinder-base-fork-summit",
        "evidence-cinder-cone-official-trailhead-coordinate",
        "evidence-cinder-cone-route-detail",
        "evidence-cinder-cone-source-profile-variation",
        "evidence-cinder-cone-source-profile-variation-nps"
      ],
      "knowledge_gap_refs": [
        "gap-lassen-cinder-rim-crater-circulation",
        "gap-lassen-cinder-source-profile-variation",
        "gap-lassen-specific-route-topology"
      ],
      "path": "canonical/v0/claims/claim-cinder-cone-official-trailhead-coordinate.json",
      "reason": "Publish the official distance-bearing Butte Lake-to-Cinder Cone summit approach while preserving unresolved rim and crater branch roles.",
      "record_id": "claim-cinder-cone-official-trailhead-coordinate",
      "record_type": "claim",
      "summary": "Add the exact official Cinder Cone summit approach with trailhead geometry and explicit rim/crater uncertainty."
    }
  ],
  "journey": [],
  "knowledge_gaps": [],
  "reference_evidence": [],
  "relationships": [
    {
      "evidence_ids": [
        "evidence-cinder-cone-trail-profile"
      ],
      "object_id": "access-lassen-butte-lake",
      "predicate": "located_within",
      "relationship_id": "relationship-trailhead-cinder-cone-connected-butte-lake-access",
      "subject_id": "trailhead-cinder-cone-butte-lake",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-cinder-cone-trail-profile"
      ],
      "object_id": "trailhead-cinder-cone-butte-lake",
      "predicate": "starts_at",
      "relationship_id": "relationship-route-cinder-cone-trail-starts-at-trailhead-cinder-cone-butte-lake",
      "subject_id": "route-cinder-cone-trail",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-cinder-trailhead-nobles-junction"
      ],
      "object_id": "trailhead-cinder-cone-butte-lake",
      "predicate": "starts_at",
      "relationship_id": "relationship-route-segment-cinder-trailhead-nobles-junction-starts-at",
      "subject_id": "route-segment-cinder-trailhead-nobles-junction",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}