{
  "answerability": "evidence_backed_claims_available",
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-western-gianelli-burst-topology",
        "evidence_ids": [
          "evidence-emigrant-western-gianelli-burst-topology"
        ],
        "predicate": "mapped_route_connector",
        "spatial_scope_ids": [
          "scope-route-emigrant-gianelli-powell-lake",
          "scope-route-emigrant-gianelli-chewing-gum-lake"
        ],
        "subject_id": "route-segment-emigrant-western-gianelli-burst",
        "temporal_scope": null,
        "value": {
          "distance_miles": null,
          "distance_status": "not_printed",
          "end_node_id": "route-node-emigrant-burst-display-break",
          "route_role": "official_mainline",
          "start_node_id": "trailhead-emigrant-gianelli",
          "support": "20E14 from Gianelli over Burst Rock; source-feature break east of Burst Rock"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-western-gianelli-burst-topology",
          "evidence_id": "evidence-emigrant-western-gianelli-burst-topology",
          "notes": "",
          "observation_id": "observation-emigrant-western-gianelli-burst-topology",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "2010 overview western panel, corroborated by lake detail maps and named USFS trail features: 20E14 from Gianelli over Burst Rock; source-feature break east of Burst Rock. Segmentation at source breaks and chosen trail approach vertices is descriptive, not a claim of an official named junction. No atomic mileage assigned from cumulative reports or GIS lengths.",
          "observation_id": "observation-emigrant-western-gianelli-burst-topology",
          "observed_at": null,
          "observer": "Wayproof primary-source text, georeferenced map and named-feature review",
          "retrieved_at": "2026-10-06T07:44:34+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-western-gianelli-burst",
        "kind": "route_segment",
        "name": "Gianelli Burst"
      }
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-western-gianelli-burst-geometry",
        "evidence_ids": [
          "evidence-emigrant-western-gianelli-burst-geometry"
        ],
        "predicate": "reviewed_route_display_geometry",
        "spatial_scope_ids": [
          "scope-route-emigrant-gianelli-powell-lake",
          "scope-route-emigrant-gianelli-chewing-gum-lake"
        ],
        "subject_id": "route-segment-emigrant-western-gianelli-burst",
        "temporal_scope": null,
        "value": {
          "coordinate_reference_system": "EPSG:4326",
          "current_route_status": "unknown; pre-trip check required",
          "end_coordinate": {
            "latitude": 38.200986162869924,
            "longitude": -119.8746181583769
          },
          "geometry_snapshot": {
            "feature_id": "usfs-emigrant-western-gianelli-burst",
            "path": "geometry/v0/snapshots/usfs-emigrant-western-routes-20261006.geojson",
            "sha256": "5cca60fe36da261b084bbd7b258964fee57c6b6a4f02edb166dad0acd7bb71ee"
          },
          "navigation_grade": false,
          "route_role": "official_mainline",
          "source_coordinate_accuracy": "unknown",
          "source_feature_id": 9429323,
          "source_globalid": "{C2BC6336-47AF-4373-BBF9-B3E9BD88D532}",
          "source_vertex_range_inclusive": [
            0,
            67
          ],
          "start_coordinate": {
            "latitude": 38.1990289378876,
            "longitude": -119.88553257191673
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-western-gianelli-burst-geometry",
          "evidence_id": "evidence-emigrant-western-gianelli-burst-geometry",
          "notes": "",
          "observation_id": "observation-emigrant-western-gianelli-burst-geometry",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "USFS National Forest System Trails feature 9429323, globalid {C2BC6336-47AF-4373-BBF9-B3E9BD88D532}, 20E14 BURST ROCK: reviewed inclusive normalized source vertices 0 through 67. Matched against official trail maps; source lengths describe the entire original feature. No coordinate is snapped and no mileage is computed.",
          "observation_id": "observation-emigrant-western-gianelli-burst-geometry",
          "observed_at": null,
          "observer": "Wayproof primary-source text, georeferenced map and named-feature review",
          "retrieved_at": "2026-10-06T00:09:34+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-western-gianelli-burst",
        "kind": "route_segment",
        "name": "Gianelli Burst"
      }
    }
  ],
  "entity": {
    "entity_id": "route-segment-emigrant-western-gianelli-burst",
    "kind": "route_segment",
    "name": "Gianelli Burst"
  },
  "gap_details": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-western-coverage",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/entities/route-segment-emigrant-western-gianelli-burst.json",
      "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.",
      "record_id": "route-segment-emigrant-western-gianelli-burst",
      "record_type": "entity",
      "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-western-coverage",
      "evidence_refs": [
        "evidence-emigrant-western-gianelli-burst-topology"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-western-gianelli-burst-topology.json",
      "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.",
      "record_id": "claim-emigrant-western-gianelli-burst-topology",
      "record_type": "claim",
      "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-western-coverage",
      "evidence_refs": [
        "evidence-emigrant-western-gianelli-burst-geometry"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-western-gianelli-burst-geometry.json",
      "reason": "Add bounded western approach, geometry and facility evidence; retain unresolved planning limits.",
      "record_id": "claim-emigrant-western-gianelli-burst-geometry",
      "record_type": "claim",
      "summary": "Add six drawable western Emigrant approaches with shared physical segments, lake camping evidence and historical trailhead facilities."
    }
  ],
  "journey": [
    {
      "claims": [
        {
          "claim": {
            "claim_id": "claim-emigrant-approach-recheck-gianelli",
            "evidence_ids": [
              "evidence-emigrant-approach-recheck-gianelli"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-emigrant-gianelli"
            ],
            "subject_id": "trailhead-emigrant-gianelli",
            "temporal_scope": null,
            "value": {
              "required": true,
              "status": "unknown",
              "topics": [
                "road and trail status",
                "fire restrictions",
                "parking and facility availability"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-approach-recheck-gianelli",
              "evidence_id": "evidence-emigrant-approach-recheck-gianelli",
              "notes": "",
              "observation_id": "observation-emigrant-approach-recheck-gianelli",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "The forest alert index contains dynamic road and fire orders. Current applicability to Gianelli Cabin Trailhead needs individual order and map review; its named access relationship is not an open-status observation.",
              "observation_id": "observation-emigrant-approach-recheck-gianelli",
              "observed_at": null,
              "observer": "Wayproof primary-source review",
              "retrieved_at": "2026-10-05T22:09:18+00:00",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "subject": {
            "entity_id": "trailhead-emigrant-gianelli",
            "kind": "trailhead",
            "name": "Gianelli Cabin Trailhead"
          }
        }
      ],
      "entity": {
        "entity_id": "trailhead-emigrant-gianelli",
        "kind": "trailhead",
        "name": "Gianelli Cabin Trailhead"
      },
      "gaps": [
        {
          "gap_id": "gap-emigrant-current-conditions",
          "question": "Are the selected approach and facilities usable on the trip date?",
          "reason": "Current road, trail, snow, crossing, water, fire and facility status is unknown. Individual alerts and mapped closures need route-specific matching; the Site Open banner is not route-level clearance.",
          "related_ids": [
            "wilderness-emigrant",
            "claim-emigrant-conditions-recheck",
            "claim-emigrant-alerts-recheck",
            "claim-emigrant-access-recheck",
            "claim-emigrant-approach-recheck-bell-meadow",
            "claim-emigrant-approach-recheck-bourland-meadow",
            "claim-emigrant-approach-recheck-box-springs",
            "claim-emigrant-approach-recheck-crabtree",
            "claim-emigrant-approach-recheck-coyote-meadow",
            "claim-emigrant-approach-recheck-eagle-meadow",
            "claim-emigrant-approach-recheck-gianelli",
            "claim-emigrant-approach-recheck-kennedy-meadows",
            "claim-emigrant-approach-recheck-waterhouse",
            "claim-emigrant-approach-recheck-sonora-pass"
          ]
        }
      ],
      "relationships": [
        {
          "evidence_ids": [
            "evidence-emigrant-western-gianelli-burst-topology",
            "evidence-emigrant-western-gianelli-burst-geometry"
          ],
          "object_id": "trailhead-emigrant-gianelli",
          "predicate": "starts_at",
          "relationship_id": "relationship-emigrant-western-gianelli-burst-start",
          "subject_id": "route-segment-emigrant-western-gianelli-burst",
          "temporal_scope": null
        }
      ],
      "role": "Entry"
    }
  ],
  "knowledge_gaps": [],
  "reference_evidence": [],
  "relationships": [
    {
      "evidence_ids": [
        "evidence-emigrant-western-gianelli-burst-topology",
        "evidence-emigrant-western-gianelli-burst-geometry"
      ],
      "object_id": "route-node-emigrant-burst-display-break",
      "predicate": "ends_at",
      "relationship_id": "relationship-emigrant-western-gianelli-burst-end",
      "subject_id": "route-segment-emigrant-western-gianelli-burst",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-emigrant-western-gianelli-chewing-gum-profile"
      ],
      "object_id": "route-emigrant-gianelli-chewing-gum-lake",
      "predicate": "part_of",
      "relationship_id": "relationship-emigrant-western-gianelli-chewing-gum-gianelli-burst",
      "subject_id": "route-segment-emigrant-western-gianelli-burst",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-emigrant-western-gianelli-powell-profile"
      ],
      "object_id": "route-emigrant-gianelli-powell-lake",
      "predicate": "part_of",
      "relationship_id": "relationship-emigrant-western-gianelli-powell-gianelli-burst",
      "subject_id": "route-segment-emigrant-western-gianelli-burst",
      "temporal_scope": null
    },
    {
      "evidence_ids": [
        "evidence-emigrant-western-gianelli-burst-topology",
        "evidence-emigrant-western-gianelli-burst-geometry"
      ],
      "object_id": "trailhead-emigrant-gianelli",
      "predicate": "starts_at",
      "relationship_id": "relationship-emigrant-western-gianelli-burst-start",
      "subject_id": "route-segment-emigrant-western-gianelli-burst",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}