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    {
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      ],
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        {
          "artifact_refs": [],
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      ]
    },
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        ],
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        }
      ],
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        {
          "artifact_refs": [],
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        }
      ],
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        {
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      ]
    },
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      },
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        }
      ],
      "observations": [
        {
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          "content": "Forest alert index requires current order/map review. Historical mapped connections and hiking descriptions do not establish present road, trail, snow, crossing or water conditions.",
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        }
      ]
    },
    {
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          "evidence-emigrant-crabtree-camp-profile"
        ],
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        }
      ],
      "observations": [
        {
          "artifact_refs": [],
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          "observation_id": "observation-emigrant-crabtree-camp-profile",
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      ],
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          "source_id": "source-usfs-emigrant-favorite-hikes"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "route-emigrant-crabtree-bear-lake",
      "kind": "route",
      "name": "Crabtree to Bear Lake"
    },
    {
      "entity_id": "route-emigrant-crabtree-camp-lake",
      "kind": "route",
      "name": "Crabtree to Camp Lake"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261005-emigrant-crabtree-lakes",
      "evidence_refs": [],
      "knowledge_gap_refs": [
        "gap-emigrant-crabtree-planning-limits"
      ],
      "path": "canonical/v0/gaps/gap-emigrant-crabtree-planning-limits.json",
      "reason": "Add bounded Crabtree lake approaches while preserving map precision and unresolved coverage.",
      "record_id": "gap-emigrant-crabtree-planning-limits",
      "record_type": "gap",
      "summary": "Model shared Crabtree approaches to Camp and Bear lakes with conflicting mileage reports and lake camping rechecks."
    },
    {
      "action": "REPLACE",
      "change_set_id": "wp-20261006-emigrant-western-coverage",
      "evidence_refs": [],
      "knowledge_gap_refs": [
        "gap-emigrant-crabtree-planning-limits"
      ],
      "path": "canonical/v0/gaps/gap-emigrant-crabtree-planning-limits.json",
      "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.",
      "record_id": "gap-emigrant-crabtree-planning-limits",
      "record_type": "gap",
      "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities."
    }
  ],
  "navigation": {
    "next_id": "gap-emigrant-cross-boundary-permits",
    "position": 173,
    "previous_id": "gap-emigrant-crabtree-junction-mileage",
    "total": 299
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Forest alert index requires current order/map review. Historical mapped connections and hiking descriptions do not establish present road, trail, snow, crossing or water conditions.",
      "observation_id": "observation-emigrant-crabtree-bear-conditions",
      "observed_at": null,
      "observer": "Wayproof primary-source text and visual map review",
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      "source_id": "source-usfs-emigrant-alerts"
    },
    {
      "artifact_refs": [],
      "content": "Favorite Hiking Trails, ROG 16-41, November 2018, page 2 Day Hikes (mileages one way): Bear Lake starts from Crabtree; Bear Lake continues past Camp Lake. Route names used here are descriptive, not asserted official trail names.",
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      "source_id": "source-usfs-emigrant-favorite-hikes"
    },
    {
      "artifact_refs": [],
      "content": "Forest alert index requires current order/map review. Historical mapped connections and hiking descriptions do not establish present road, trail, snow, crossing or water conditions.",
      "observation_id": "observation-emigrant-crabtree-camp-conditions",
      "observed_at": null,
      "observer": "Wayproof primary-source text and visual map review",
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      "source_id": "source-usfs-emigrant-alerts"
    },
    {
      "artifact_refs": [],
      "content": "Favorite Hiking Trails, ROG 16-41, November 2018, page 2 Day Hikes (mileages one way): Camp Lake starts from Crabtree; Bear Lake continues past Camp Lake. Route names used here are descriptive, not asserted official trail names.",
      "observation_id": "observation-emigrant-crabtree-camp-profile",
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      "retrieved_at": "2026-10-05T22:52:54+00:00",
      "source_id": "source-usfs-emigrant-favorite-hikes"
    }
  ],
  "record": {
    "gap_id": "gap-emigrant-crabtree-planning-limits",
    "question": "Does this graph establish a complete lake camping itinerary?",
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      "claim-emigrant-crabtree-bear-profile",
      "claim-emigrant-crabtree-camp-conditions",
      "claim-emigrant-crabtree-bear-conditions"
    ]
  },
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        }
      },
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    {
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    {
      "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"
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  ]
}