{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-bear-favorite-hikes",
        "evidence_ids": [
          "evidence-emigrant-crabtree-bear-favorite-hikes"
        ],
        "predicate": "published_approach_distance_report",
        "spatial_scope_ids": [
          "scope-route-emigrant-crabtree-bear-lake"
        ],
        "subject_id": "route-emigrant-crabtree-bear-lake",
        "temporal_scope": null,
        "value": {
          "endpoint_precision": "lake destination; exact point unspecified",
          "reported_one_way_miles": 4,
          "source_edition": "2018-11",
          "status": "conflicting reports; not a resolved route total"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-bear-favorite-hikes",
          "evidence_id": "evidence-emigrant-crabtree-bear-favorite-hikes",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-bear-favorite-hikes",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "2018-11, ROG 16-41 Day Hikes, page 2: Bear Lake 4 miles from Crabtree. Endpoint precision is not specified; editions disagree.",
          "observation_id": "observation-emigrant-crabtree-bear-favorite-hikes",
          "observed_at": null,
          "observer": "Wayproof primary-source text and visual map review",
          "retrieved_at": "2026-10-05T22:52:54+00:00",
          "source_id": "source-usfs-emigrant-favorite-hikes"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/r05/stanislaus/publication/Favorite%20Hiking%20Trails.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-favorite-hikes"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-bear-mileage-table",
        "evidence_ids": [
          "evidence-emigrant-crabtree-bear-mileage-table"
        ],
        "predicate": "published_approach_distance_report",
        "spatial_scope_ids": [
          "scope-route-emigrant-crabtree-bear-lake"
        ],
        "subject_id": "route-emigrant-crabtree-bear-lake",
        "temporal_scope": null,
        "value": {
          "endpoint_precision": "lake destination; exact point unspecified",
          "reported_one_way_miles": 3.9,
          "source_edition": "2012-06",
          "status": "conflicting reports; not a resolved route total"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-bear-mileage-table",
          "evidence_id": "evidence-emigrant-crabtree-bear-mileage-table",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-bear-mileage-table",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "2012-06, ROG 16-27 Crabtree column, page 1: Bear Lake 3.9 miles from Crabtree. Endpoint precision is not specified; editions disagree.",
          "observation_id": "observation-emigrant-crabtree-bear-mileage-table",
          "observed_at": null,
          "observer": "Wayproof primary-source text and visual map review",
          "retrieved_at": "2026-10-05T22:52:54+00:00",
          "source_id": "source-usfs-emigrant-mileage-table"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Trail%20Mileages%20-%20Emigrant%202012.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-mileage-table"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "route-emigrant-crabtree-bear-lake",
      "kind": "route",
      "name": "Crabtree to Bear Lake"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261005-emigrant-crabtree-lakes",
      "evidence_refs": [],
      "knowledge_gap_refs": [
        "gap-emigrant-crabtree-bear-mileage"
      ],
      "path": "canonical/v0/gaps/gap-emigrant-crabtree-bear-mileage.json",
      "reason": "Add bounded Crabtree lake approaches while preserving map precision and unresolved coverage.",
      "record_id": "gap-emigrant-crabtree-bear-mileage",
      "record_type": "gap",
      "summary": "Model shared Crabtree approaches to Camp and Bear lakes with conflicting mileage reports and lake camping rechecks."
    }
  ],
  "navigation": {
    "next_id": "gap-emigrant-crabtree-camp-mileage",
    "position": 169,
    "previous_id": "gap-emigrant-completion-yose-continuity",
    "total": 299
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "2018-11, ROG 16-41 Day Hikes, page 2: Bear Lake 4 miles from Crabtree. Endpoint precision is not specified; editions disagree.",
      "observation_id": "observation-emigrant-crabtree-bear-favorite-hikes",
      "observed_at": null,
      "observer": "Wayproof primary-source text and visual map review",
      "retrieved_at": "2026-10-05T22:52:54+00:00",
      "source_id": "source-usfs-emigrant-favorite-hikes"
    },
    {
      "artifact_refs": [],
      "content": "2012-06, ROG 16-27 Crabtree column, page 1: Bear Lake 3.9 miles from Crabtree. Endpoint precision is not specified; editions disagree.",
      "observation_id": "observation-emigrant-crabtree-bear-mileage-table",
      "observed_at": null,
      "observer": "Wayproof primary-source text and visual map review",
      "retrieved_at": "2026-10-05T22:52:54+00:00",
      "source_id": "source-usfs-emigrant-mileage-table"
    }
  ],
  "record": {
    "gap_id": "gap-emigrant-crabtree-bear-mileage",
    "question": "What one-way distance should be planned from Crabtree to Bear Lake?",
    "reason": "Official editions give different destination mileages. Preserve each report; neither supplies all atomic leg distances. No subtraction or schematic measurement supplies missing legs. Confirm the intended lake endpoint and current route with the Forest Service.",
    "related_ids": [
      "route-emigrant-crabtree-bear-lake",
      "claim-emigrant-crabtree-bear-mileage-table",
      "claim-emigrant-crabtree-bear-favorite-hikes"
    ]
  },
  "record_type": "gap",
  "related_records": [
    {
      "record": {
        "entity_id": "route-emigrant-crabtree-bear-lake",
        "kind": "route",
        "name": "Crabtree to Bear Lake"
      },
      "record_id": "route-emigrant-crabtree-bear-lake",
      "record_type": "entity"
    },
    {
      "record": {
        "claim_id": "claim-emigrant-crabtree-bear-mileage-table",
        "evidence_ids": [
          "evidence-emigrant-crabtree-bear-mileage-table"
        ],
        "predicate": "published_approach_distance_report",
        "spatial_scope_ids": [
          "scope-route-emigrant-crabtree-bear-lake"
        ],
        "subject_id": "route-emigrant-crabtree-bear-lake",
        "temporal_scope": null,
        "value": {
          "endpoint_precision": "lake destination; exact point unspecified",
          "reported_one_way_miles": 3.9,
          "source_edition": "2012-06",
          "status": "conflicting reports; not a resolved route total"
        }
      },
      "record_id": "claim-emigrant-crabtree-bear-mileage-table",
      "record_type": "claim"
    },
    {
      "record": {
        "claim_id": "claim-emigrant-crabtree-bear-favorite-hikes",
        "evidence_ids": [
          "evidence-emigrant-crabtree-bear-favorite-hikes"
        ],
        "predicate": "published_approach_distance_report",
        "spatial_scope_ids": [
          "scope-route-emigrant-crabtree-bear-lake"
        ],
        "subject_id": "route-emigrant-crabtree-bear-lake",
        "temporal_scope": null,
        "value": {
          "endpoint_precision": "lake destination; exact point unspecified",
          "reported_one_way_miles": 4,
          "source_edition": "2018-11",
          "status": "conflicting reports; not a resolved route total"
        }
      },
      "record_id": "claim-emigrant-crabtree-bear-favorite-hikes",
      "record_type": "claim"
    }
  ],
  "sources": [
    {
      "locator": "https://www.fs.usda.gov/sites/nfs/files/r05/stanislaus/publication/Favorite%20Hiking%20Trails.pdf",
      "publisher": "USDA Forest Service, Stanislaus National Forest",
      "source_id": "source-usfs-emigrant-favorite-hikes"
    },
    {
      "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Trail%20Mileages%20-%20Emigrant%202012.pdf",
      "publisher": "USDA Forest Service, Stanislaus National Forest",
      "source_id": "source-usfs-emigrant-mileage-table"
    }
  ]
}