{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-access-sonora-pass",
        "evidence_ids": [
          "evidence-emigrant-access-sonora-pass"
        ],
        "predicate": "wilderness_access",
        "spatial_scope_ids": [
          "scope-emigrant-sonora-pass"
        ],
        "subject_id": "trailhead-emigrant-sonora-pass",
        "temporal_scope": null,
        "value": "wilderness-emigrant"
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-access-sonora-pass",
          "evidence_id": "evidence-emigrant-access-sonora-pass",
          "notes": "",
          "observation_id": "observation-emigrant-access-sonora-pass",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Highway 108 Access, overview access list: Sonora Pass is explicitly listed as access to Emigrant Wilderness.",
          "observation_id": "observation-emigrant-access-sonora-pass",
          "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"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "trailhead-emigrant-sonora-pass",
      "kind": "trailhead",
      "name": "Sonora Pass Trailhead"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261005-emigrant-foundation",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-emigrant-access-sonora-pass.json",
      "reason": "Establish source-backed Emigrant planning foundation with explicit uncertainty.",
      "record_id": "observation-emigrant-access-sonora-pass",
      "record_type": "observation",
      "summary": "Establish Emigrant Wilderness access and overnight planning foundation; preserve USFS conflicts and current-condition gaps."
    }
  ],
  "navigation": {
    "next_id": "observation-emigrant-access-waterhouse",
    "position": 188,
    "previous_id": "observation-emigrant-access-recheck",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Highway 108 Access, overview access list: Sonora Pass is explicitly listed as access to Emigrant Wilderness.",
      "observation_id": "observation-emigrant-access-sonora-pass",
      "observed_at": null,
      "observer": "Wayproof primary-source review",
      "retrieved_at": "2026-10-05T22:09:18+00:00",
      "source_id": "source-usfs-emigrant-access"
    }
  ],
  "record": {
    "artifact_refs": [],
    "content": "Highway 108 Access, overview access list: Sonora Pass is explicitly listed as access to Emigrant Wilderness.",
    "observation_id": "observation-emigrant-access-sonora-pass",
    "observed_at": null,
    "observer": "Wayproof primary-source review",
    "retrieved_at": "2026-10-05T22:09:18+00:00",
    "source_id": "source-usfs-emigrant-access"
  },
  "record_type": "observation",
  "related_records": [],
  "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"
    }
  ]
}