{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-completion-leavitt-location",
        "evidence_ids": [
          "evidence-emigrant-completion-leavitt-location"
        ],
        "predicate": "published_location_report",
        "spatial_scope_ids": [
          "scope-emigrant-leavitt-lake"
        ],
        "subject_id": "trailhead-emigrant-leavitt-lake",
        "temporal_scope": null,
        "value": {
          "latitude": 38.273405,
          "location_role": "trailhead page point; not substituted for trail start",
          "longitude": -119.612353,
          "reported_elevation_feet": 9670,
          "source_accuracy": "unknown"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-completion-leavitt-location",
          "evidence_id": "evidence-emigrant-completion-leavitt-location",
          "notes": "",
          "observation_id": "observation-emigrant-completion-leavitt-location",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "USFS trailhead page gives latitude 38.273405, longitude -119.612353 and elevation 9,670 feet. These are retained separately from the reviewed trail geometry start and the 2012 table elevation of 9,600 feet.",
          "observation_id": "observation-emigrant-completion-leavitt-location",
          "observed_at": null,
          "observer": "Wayproof primary-source, map and source-feature review",
          "retrieved_at": "2026-10-06T20:36:35+00:00",
          "source_id": "source-emigrant-completion-leavitt"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/r04/humboldt-toiyabe/recreation/leavitt-lake-trailhead",
          "publisher": "USDA Forest Service",
          "source_id": "source-emigrant-completion-leavitt"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "trailhead-emigrant-leavitt-lake",
      "kind": "trailhead",
      "name": "Leavitt Lake Trailhead"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-completion",
      "evidence_refs": [
        "evidence-emigrant-completion-leavitt-location"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-completion-leavitt-location.json",
      "reason": "Add combined southern approaches, boundary, entry-policy and facility audit; preserve uncertainty.",
      "record_id": "claim-emigrant-completion-leavitt-location",
      "record_type": "claim",
      "summary": "Combine five southern/eastern Emigrant approaches with reviewed boundary, jurisdiction-specific planning and campground/operator inventory audit."
    }
  ],
  "navigation": {
    "next_id": "claim-emigrant-completion-leavitt-overnight",
    "position": 619,
    "previous_id": "claim-emigrant-completion-leavitt-lake-recheck",
    "total": 3965
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "USFS trailhead page gives latitude 38.273405, longitude -119.612353 and elevation 9,670 feet. These are retained separately from the reviewed trail geometry start and the 2012 table elevation of 9,600 feet.",
      "observation_id": "observation-emigrant-completion-leavitt-location",
      "observed_at": null,
      "observer": "Wayproof primary-source, map and source-feature review",
      "retrieved_at": "2026-10-06T20:36:35+00:00",
      "source_id": "source-emigrant-completion-leavitt"
    }
  ],
  "record": {
    "claim_id": "claim-emigrant-completion-leavitt-location",
    "evidence_ids": [
      "evidence-emigrant-completion-leavitt-location"
    ],
    "predicate": "published_location_report",
    "spatial_scope_ids": [
      "scope-emigrant-leavitt-lake"
    ],
    "subject_id": "trailhead-emigrant-leavitt-lake",
    "temporal_scope": null,
    "value": {
      "latitude": 38.273405,
      "location_role": "trailhead page point; not substituted for trail start",
      "longitude": -119.612353,
      "reported_elevation_feet": 9670,
      "source_accuracy": "unknown"
    }
  },
  "record_type": "claim",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.fs.usda.gov/r04/humboldt-toiyabe/recreation/leavitt-lake-trailhead",
      "publisher": "USDA Forest Service",
      "source_id": "source-emigrant-completion-leavitt"
    }
  ]
}