{
  "answerability": "evidence_backed_claims_available",
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-northern-eagle-pass-topology",
        "evidence_ids": [
          "evidence-emigrant-northern-eagle-pass-topology"
        ],
        "predicate": "mapped_route_connector",
        "spatial_scope_ids": [
          "scope-route-emigrant-eagle-meadow-eagle-pass"
        ],
        "subject_id": "route-segment-emigrant-northern-eagle-pass",
        "temporal_scope": null,
        "value": {
          "distance_miles": null,
          "distance_status": "not_printed",
          "end_node_id": "route-node-emigrant-eagle-pass-approach",
          "route_role": "official_mainline",
          "start_node_id": "route-node-emigrant-eagle-display-break",
          "support": "20E08 to the northern approach at the Eagle Pass boundary saddle; no southern descent included"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-eagle-pass-topology",
          "evidence_id": "evidence-emigrant-northern-eagle-pass-topology",
          "notes": "",
          "observation_id": "observation-emigrant-northern-eagle-pass-topology",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "20E08 to the northern approach at the Eagle Pass boundary saddle; no southern descent included Atomic mileage remains unknown; cumulative reports and GIS lengths are not subtracted or measured.",
          "observation_id": "observation-emigrant-northern-eagle-pass-topology",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:34:28+00:00",
          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
      "subject": {
        "entity_id": "route-segment-emigrant-northern-eagle-pass",
        "kind": "route_segment",
        "name": "Eagle Pass"
      }
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-northern-eagle-pass-geometry",
        "evidence_ids": [
          "evidence-emigrant-northern-eagle-pass-geometry"
        ],
        "predicate": "reviewed_route_display_geometry",
        "spatial_scope_ids": [
          "scope-route-emigrant-eagle-meadow-eagle-pass"
        ],
        "subject_id": "route-segment-emigrant-northern-eagle-pass",
        "temporal_scope": null,
        "value": {
          "coordinate_reference_system": "EPSG:4326",
          "current_route_status": "unknown; pre-trip check required",
          "end_coordinate": {
            "latitude": 38.2482329936815,
            "longitude": -119.82708182625333
          },
          "geometry_snapshot": {
            "feature_id": "usfs-emigrant-northern-eagle-pass",
            "path": "geometry/v0/snapshots/usfs-emigrant-northern-routes-20261006.geojson",
            "sha256": "3f1c624ca1e6d3909e647f702548cca99fcce37370fdbba23c34cae12e195cca"
          },
          "navigation_grade": false,
          "route_role": "official_mainline",
          "source_coordinate_accuracy": "unknown",
          "source_feature_id": 9430469,
          "source_globalid": "{4462AC9E-FF7C-4BFB-A0EC-3155C06BBBB0}",
          "source_vertex_range_inclusive": [
            0,
            77
          ],
          "start_coordinate": {
            "latitude": 38.260955914296815,
            "longitude": -119.83444870996223
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-eagle-pass-geometry",
          "evidence_id": "evidence-emigrant-northern-eagle-pass-geometry",
          "notes": "",
          "observation_id": "observation-emigrant-northern-eagle-pass-geometry",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "USFS National Forest System Trails object 9430469, globalid {4462AC9E-FF7C-4BFB-A0EC-3155C06BBBB0}, 20E08 EAGLE CREEK; reviewed inclusive normalized vertices 0–77. Endpoint assignments are descriptive and source lengths apply to the original feature.",
          "observation_id": "observation-emigrant-northern-eagle-pass-geometry",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:14:14+00:00",
          "source_id": "source-usfs-emigrant-nfs-trail-geometry"
        }
      ],
      "sources": [
        {
          "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0",
          "publisher": "USDA Forest Service",
          "source_id": "source-usfs-emigrant-nfs-trail-geometry"
        }
      ],
      "subject": {
        "entity_id": "route-segment-emigrant-northern-eagle-pass",
        "kind": "route_segment",
        "name": "Eagle Pass"
      }
    }
  ],
  "entity": {
    "entity_id": "route-segment-emigrant-northern-eagle-pass",
    "kind": "route_segment",
    "name": "Eagle Pass"
  },
  "gap_details": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/entities/route-segment-emigrant-northern-eagle-pass.json",
      "reason": "Add bounded northern approaches, geometry and historical access evidence; preserve unresolved planning limits.",
      "record_id": "route-segment-emigrant-northern-eagle-pass",
      "record_type": "entity",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
      "evidence_refs": [
        "evidence-emigrant-northern-eagle-pass-topology"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-northern-eagle-pass-topology.json",
      "reason": "Add bounded northern approaches, geometry and historical access evidence; preserve unresolved planning limits.",
      "record_id": "claim-emigrant-northern-eagle-pass-topology",
      "record_type": "claim",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
      "evidence_refs": [
        "evidence-emigrant-northern-eagle-pass-geometry"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-northern-eagle-pass-geometry.json",
      "reason": "Add bounded northern approaches, geometry and historical access evidence; preserve unresolved planning limits.",
      "record_id": "claim-emigrant-northern-eagle-pass-geometry",
      "record_type": "claim",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    }
  ],
  "journey": [],
  "knowledge_gaps": [],
  "reference_evidence": [],
  "relationships": [
    {
      "evidence_ids": [
        "evidence-emigrant-northern-eagle-pass-topology",
        "evidence-emigrant-northern-eagle-pass-geometry"
      ],
      "object_id": "route-node-emigrant-eagle-pass-approach",
      "predicate": "ends_at",
      "relationship_id": "relationship-emigrant-northern-eagle-pass-end",
      "subject_id": "route-segment-emigrant-northern-eagle-pass",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-emigrant-northern-eagle-meadow-eagle-pass-profile"
      ],
      "object_id": "route-emigrant-eagle-meadow-eagle-pass",
      "predicate": "part_of",
      "relationship_id": "relationship-emigrant-northern-eagle-meadow-eagle-pass-eagle-pass",
      "subject_id": "route-segment-emigrant-northern-eagle-pass",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-emigrant-northern-eagle-pass-topology",
        "evidence-emigrant-northern-eagle-pass-geometry"
      ],
      "object_id": "pass-emigrant-eagle",
      "predicate": "provides_access_to",
      "relationship_id": "relationship-emigrant-northern-eagle-pass-resource",
      "subject_id": "route-segment-emigrant-northern-eagle-pass",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-emigrant-northern-eagle-pass-topology",
        "evidence-emigrant-northern-eagle-pass-geometry"
      ],
      "object_id": "route-node-emigrant-eagle-display-break",
      "predicate": "starts_at",
      "relationship_id": "relationship-emigrant-northern-eagle-pass-start",
      "subject_id": "route-segment-emigrant-northern-eagle-pass",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}
