{
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        ],
        "subject_id": "route-segment-convict-lake-loop-east-north-road-link",
        "temporal_scope": null,
        "value": {
          "distance_derivation": "reviewed source geometry measured geodesically",
          "distance_miles": 0.06898757,
          "distance_status": "geometry_derived",
          "end_coordinate": {
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            "longitude": -118.85276363557385
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          "evidence_id": "evidence-route-segment-convict-lake-loop-east-north-road-link",
          "notes": "",
          "observation_id": "observation-usfs-convict-lake-loop-map-20260925",
          "stance": "supports"
        },
        {
          "claim_id": "claim-route-segment-convict-lake-loop-east-north-road-link",
          "evidence_id": "evidence-route-segment-convict-lake-loop-east-north-road-link-transportation-geometry",
          "notes": "",
          "observation_id": "observation-usgs-convict-loop-closure-geometry-20260925",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The official Forest Service Convict Lake hiking map depicts a continuous dotted hiking route around the lake. The retained south-shore trail reaches the road and cul-de-sac on the lake's east side; the mapped loop follows a road connection, returns to an east-side lakeshore trail, and then uses another road connection through the boat-ramp and trailhead-parking area to rejoin the retained north-shore trail. The map does not publish individual leg mileages or reusable line geometry for these three mixed-surface connections.",
          "observation_id": "observation-usfs-convict-lake-loop-map-20260925",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-25T10:00:00+00:00",
          "source_id": "source-usfs-convict-wilderness-hiking"
        },
        {
          "artifact_refs": [
            "geometry/v0/snapshots/usgs-convict-lake-loop-closure-20260925.geojson"
          ],
          "content": "The July 2026 USGS Transportation service returns the Convict Lake Road and Boat Launch road features plus a paved 0.34564349-mile CONVICT LAKE VIS trail. Their geometry matches the road-trail-road loop closure depicted by the official Forest Service hiking map. The south road feature intersects the paved trail endpoint within 0.4 meter; the north road and retained trail endpoints match within approximately 1.4 meters.",
          "observation_id": "observation-usgs-convict-loop-closure-geometry-20260925",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-25T11:00:00+00:00",
          "source_id": "source-usgs-national-map-transportation-convict-20260925"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/media/123390",
          "publisher": "USDA Forest Service",
          "source_id": "source-usfs-convict-wilderness-hiking"
        },
        {
          "locator": "https://carto.nationalmap.gov/arcgis/rest/services/transportation/MapServer",
          "publisher": "U.S. Geological Survey / U.S. Forest Service",
          "source_id": "source-usgs-national-map-transportation-convict-20260925"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "route-segment-convict-lake-loop-east-north-road-link",
      "kind": "route_segment",
      "name": "Convict Lake Loop north trailhead road link"
    }
  ],
  "history": [
    {
      "action": "REPLACE",
      "change_set_id": "wp-20260925-convict-loop-complete-geometry",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-route-segment-convict-lake-loop-east-north-road-link.json",
      "reason": "Add reviewed USGS road and trail geometry for the complete Convict Lake loop.",
      "record_id": "claim-route-segment-convict-lake-loop-east-north-road-link",
      "record_type": "claim",
      "summary": "Complete Convict Lake Loop display geometry and preserve its published-distance discrepancy."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260925-convict-loop-mixed-surface-correction",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-route-segment-convict-lake-loop-east-north-road-link.json",
      "reason": "Replace the coarse Convict Lake east-shore connector with the mapped road-trail-road sequence.",
      "record_id": "claim-route-segment-convict-lake-loop-east-north-road-link",
      "record_type": "claim",
      "summary": "Replace Convict Lake Loop's coarse east connector with an evidence-bounded road-trail-road sequence."
    }
  ],
  "navigation": {
    "next_id": "claim-route-segment-convict-lake-loop-east-shore-trail",
    "position": 3132,
    "previous_id": "claim-route-segment-convict-lake-loop-05",
    "total": 3965
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "The official Forest Service Convict Lake hiking map depicts a continuous dotted hiking route around the lake. The retained south-shore trail reaches the road and cul-de-sac on the lake's east side; the mapped loop follows a road connection, returns to an east-side lakeshore trail, and then uses another road connection through the boat-ramp and trailhead-parking area to rejoin the retained north-shore trail. The map does not publish individual leg mileages or reusable line geometry for these three mixed-surface connections.",
      "observation_id": "observation-usfs-convict-lake-loop-map-20260925",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-25T10:00:00+00:00",
      "source_id": "source-usfs-convict-wilderness-hiking"
    },
    {
      "artifact_refs": [
        "geometry/v0/snapshots/usgs-convict-lake-loop-closure-20260925.geojson"
      ],
      "content": "The July 2026 USGS Transportation service returns the Convict Lake Road and Boat Launch road features plus a paved 0.34564349-mile CONVICT LAKE VIS trail. Their geometry matches the road-trail-road loop closure depicted by the official Forest Service hiking map. The south road feature intersects the paved trail endpoint within 0.4 meter; the north road and retained trail endpoints match within approximately 1.4 meters.",
      "observation_id": "observation-usgs-convict-loop-closure-geometry-20260925",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-25T11:00:00+00:00",
      "source_id": "source-usgs-national-map-transportation-convict-20260925"
    }
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    "evidence_ids": [
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    "subject_id": "route-segment-convict-lake-loop-east-north-road-link",
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      },
      "surface": "road"
    }
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    {
      "locator": "https://www.fs.usda.gov/media/123390",
      "publisher": "USDA Forest Service",
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    },
    {
      "locator": "https://carto.nationalmap.gov/arcgis/rest/services/transportation/MapServer",
      "publisher": "U.S. Geological Survey / U.S. Forest Service",
      "source_id": "source-usgs-national-map-transportation-convict-20260925"
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}