{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-camp-bear-junction",
        "evidence_ids": [
          "evidence-emigrant-crabtree-camp-bear-junction"
        ],
        "predicate": "mapped_route_connector",
        "spatial_scope_ids": [
          "scope-route-segment-emigrant-crabtree-camp-bear-junction"
        ],
        "subject_id": "route-segment-emigrant-crabtree-camp-bear-junction",
        "temporal_scope": null,
        "value": {
          "distance_miles": null,
          "distance_status": "not_printed",
          "end_node_id": "route-node-emigrant-bear-junction",
          "precision_note": "Mapped connectivity; no surveyed coordinates. Schematic distance is an estimate, not navigation.",
          "route_role": "official_mainline",
          "start_node_id": "route-node-emigrant-camp-west-approach"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-camp-bear-junction",
          "evidence_id": "evidence-emigrant-crabtree-camp-bear-junction",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-camp-bear-junction",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): system trail from To Crabtree Trailhead follows south of Camp Lake to an east-side fork explicitly labeled To Bear Lake.",
          "observation_id": "observation-emigrant-crabtree-camp-bear-junction",
          "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-camp-camping-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-camp-camping-map"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-camp-camping-exclusion",
        "evidence_ids": [
          "evidence-emigrant-crabtree-camp-camping-exclusion"
        ],
        "predicate": "camping_area_restriction",
        "spatial_scope_ids": [
          "scope-waterbody-emigrant-camp-lake"
        ],
        "subject_id": "waterbody-emigrant-camp-lake",
        "temporal_scope": null,
        "value": {
          "no_campsites_inferred": true,
          "restriction": "Camping is prohibited between the trail and Camp Lake.",
          "site_availability": "unknown"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-camp-camping-exclusion",
          "evidence_id": "evidence-emigrant-crabtree-camp-camping-exclusion",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-camp-camping-exclusion",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): Camping is prohibited between the trail and Camp Lake.",
          "observation_id": "observation-emigrant-crabtree-camp-camping-exclusion",
          "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-camp-camping-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-camp-camping-map"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-camp-identity",
        "evidence_ids": [
          "evidence-emigrant-crabtree-camp-identity"
        ],
        "predicate": "mapped_lake_identity",
        "spatial_scope_ids": [
          "scope-waterbody-emigrant-camp-lake"
        ],
        "subject_id": "waterbody-emigrant-camp-lake",
        "temporal_scope": null,
        "value": {
          "edition_basis": "2021 filename",
          "geometry": "not imported",
          "name": "Camp Lake",
          "wilderness": "wilderness-emigrant"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-camp-identity",
          "evidence_id": "evidence-emigrant-crabtree-camp-identity",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-camp-identity",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): named lake in Emigrant Wilderness and system trail marked To Crabtree Trailhead. The system trail approaches from the west and follows south of Camp Lake. No shoreline polygon, campsite inventory or live water availability is inferred.",
          "observation_id": "observation-emigrant-crabtree-camp-identity",
          "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-camp-camping-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-camp-camping-map"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-camp-recommendation",
        "evidence_ids": [
          "evidence-emigrant-crabtree-camp-recommendation"
        ],
        "predicate": "camping_setback_recommendation",
        "spatial_scope_ids": [
          "scope-waterbody-emigrant-camp-lake"
        ],
        "subject_id": "waterbody-emigrant-camp-lake",
        "temporal_scope": null,
        "value": {
          "basis": "Leave No Trace ethic; not asserted regulatory minimum",
          "recommended_feet": 200
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-camp-recommendation",
          "evidence_id": "evidence-emigrant-crabtree-camp-recommendation",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-camp-recommendation",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): 200 feet is the Leave No Trace recommended minimum distance, distinct from the 100-foot regulatory minimum.",
          "observation_id": "observation-emigrant-crabtree-camp-recommendation",
          "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-camp-camping-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-camp-camping-map"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-crabtree-camp-setback",
        "evidence_ids": [
          "evidence-emigrant-crabtree-camp-setback"
        ],
        "predicate": "camping_setback",
        "spatial_scope_ids": [
          "scope-waterbody-emigrant-camp-lake"
        ],
        "subject_id": "waterbody-emigrant-camp-lake",
        "temporal_scope": null,
        "value": {
          "from": [
            "water",
            "trails",
            "posted signs"
          ],
          "map_is_reference_only": true,
          "minimum_feet": 100
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-crabtree-camp-setback",
          "evidence_id": "evidence-emigrant-crabtree-camp-setback",
          "notes": "",
          "observation_id": "observation-emigrant-crabtree-camp-setback",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): camping less than 100 feet from water, trails or posted signs is prohibited.",
          "observation_id": "observation-emigrant-crabtree-camp-setback",
          "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-camp-camping-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-camp-camping-map"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "route-segment-emigrant-crabtree-camp-bear-junction",
      "kind": "route_segment",
      "name": "Camp Bear Junction"
    },
    {
      "entity_id": "waterbody-emigrant-camp-lake",
      "kind": "waterbody",
      "name": "Camp Lake (Emigrant Wilderness)"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261005-emigrant-crabtree-lakes",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-usfs-emigrant-camp-camping-map.json",
      "reason": "Add bounded Crabtree lake approaches while preserving map precision and unresolved coverage.",
      "record_id": "source-usfs-emigrant-camp-camping-map",
      "record_type": "source",
      "summary": "Model shared Crabtree approaches to Camp and Bear lakes with conflicting mileage reports and lake camping rechecks."
    }
  ],
  "navigation": {
    "next_id": "source-usfs-emigrant-chewing-camping-map",
    "position": 530,
    "previous_id": "source-usfs-emigrant-brightman-2020",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): system trail from To Crabtree Trailhead follows south of Camp Lake to an east-side fork explicitly labeled To Bear Lake.",
      "observation_id": "observation-emigrant-crabtree-camp-bear-junction",
      "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-camp-camping-map"
    },
    {
      "artifact_refs": [],
      "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): Camping is prohibited between the trail and Camp Lake.",
      "observation_id": "observation-emigrant-crabtree-camp-camping-exclusion",
      "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-camp-camping-map"
    },
    {
      "artifact_refs": [],
      "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): named lake in Emigrant Wilderness and system trail marked To Crabtree Trailhead. The system trail approaches from the west and follows south of Camp Lake. No shoreline polygon, campsite inventory or live water availability is inferred.",
      "observation_id": "observation-emigrant-crabtree-camp-identity",
      "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-camp-camping-map"
    },
    {
      "artifact_refs": [],
      "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): 200 feet is the Leave No Trace recommended minimum distance, distinct from the 100-foot regulatory minimum.",
      "observation_id": "observation-emigrant-crabtree-camp-recommendation",
      "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-camp-camping-map"
    },
    {
      "artifact_refs": [],
      "content": "Minimum Camping Distance Map for Camp Lake, page 1 (2021 filename): camping less than 100 feet from water, trails or posted signs is prohibited.",
      "observation_id": "observation-emigrant-crabtree-camp-setback",
      "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-camp-camping-map"
    }
  ],
  "record": {
    "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
    "publisher": "USDA Forest Service, Stanislaus National Forest",
    "source_id": "source-usfs-emigrant-camp-camping-map"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Camp%20Lake%20-%20Minimum%20Camping%20Distances%202021.pdf",
      "publisher": "USDA Forest Service, Stanislaus National Forest",
      "source_id": "source-usfs-emigrant-camp-camping-map"
    }
  ]
}