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          "evidence-route-segment-lassen-warner-start-first-y-3"
        ],
        "predicate": "described_route_connector",
        "spatial_scope_ids": [
          "scope-route-devils-kitchen-trail",
          "scope-route-terminal-geyser-trail"
        ],
        "subject_id": "route-segment-lassen-warner-start-first-y",
        "temporal_scope": null,
        "value": {
          "distance_miles": null,
          "distance_status": "not_printed",
          "route_role": "official_mainline"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-route-segment-lassen-warner-start-first-y",
          "evidence_id": "evidence-route-segment-lassen-warner-start-first-y-1",
          "notes": "The route description supplies ordered junctions; the brochure map corroborates the network connection without supplying atomic mileage.",
          "observation_id": "observation-nps-lassen-brochure-map-2015-20260923",
          "stance": "supports"
        },
        {
          "claim_id": "claim-route-segment-lassen-warner-start-first-y",
          "evidence_id": "evidence-route-segment-lassen-warner-start-first-y-2",
          "notes": "The route description supplies ordered junctions; the brochure map corroborates the network connection without supplying atomic mileage.",
          "observation_id": "observation-nps-lassen-devils-kitchen-trail-20260923",
          "stance": "supports"
        },
        {
          "claim_id": "claim-route-segment-lassen-warner-start-first-y",
          "evidence_id": "evidence-route-segment-lassen-warner-start-first-y-3",
          "notes": "The route description supplies ordered junctions; the brochure map corroborates the network connection without supplying atomic mileage.",
          "observation_id": "observation-nps-lassen-terminal-geyser-trail-20260923",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "https://www.nps.gov/lavo/planyourvisit/maps.htm",
            "https://www.nps.gov/lavo/planyourvisit/park-brochure.htm"
          ],
          "content": "The NPS brochure map depicts the Warner Valley trail network, including the Pacific Crest Trail, Drakesbad, Devils Kitchen, Dream Lake, Boiling Springs Lake, Terminal Geyser, and the connecting trail junction pattern. The map does not print atomic mileage for these connectors.",
          "observation_id": "observation-nps-lassen-brochure-map-2015-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T07:30:00+00:00",
          "source_id": "source-nps-lassen-brochure-map-2015-mirror"
        },
        {
          "artifact_refs": [],
          "content": "Devils Kitchen Trail starts at Warner Valley Trailhead and is 4.2 miles round trip. The first 0.4 mile reaches the first intersection, where the route turns right. The Dream Lake Basin intersection is at 0.6 mile. At a third intersection the route turns right for the last 0.9 mile to Devils Kitchen; the final described 0.2 mile descends to Hot Springs Creek and the hydrothermal-area loop.",
          "observation_id": "observation-nps-lassen-devils-kitchen-trail-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T07:30:00+00:00",
          "source_id": "source-nps-lassen-devils-kitchen-trail"
        },
        {
          "artifact_refs": [],
          "content": "Terminal Geyser Trail starts at Warner Valley Trailhead and is 5.8 miles round trip. It follows the PCT to a y-junction serving Dream Lake, Devils Kitchen, and a horse trail, then veers left toward Boiling Springs Lake. A second y-junction is at 0.9 mile, followed by a signed three-way junction southeast of Boiling Springs Lake. At 2.5 miles the route rejoins the PCT; about 25 feet later another junction sends the PCT toward Little Willow Lake while the Terminal Geyser route continues ahead.",
          "observation_id": "observation-nps-lassen-terminal-geyser-trail-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T07:30:00+00:00",
          "source_id": "source-nps-lassen-terminal-geyser-trail"
        }
      ],
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        {
          "locator": "https://commons.wikimedia.org/wiki/File:NPS_lassen-volcanic-map.pdf",
          "publisher": "U.S. National Park Service; public-domain map hosted by Wikimedia Commons",
          "source_id": "source-nps-lassen-brochure-map-2015-mirror"
        },
        {
          "locator": "https://www.nps.gov/lavo/planyourvisit/hiking_devils_kitchen.htm",
          "publisher": "National Park Service",
          "source_id": "source-nps-lassen-devils-kitchen-trail"
        },
        {
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          "publisher": "National Park Service",
          "source_id": "source-nps-lassen-terminal-geyser-trail"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-terminal-geyser-trail-profile",
        "evidence_ids": [
          "evidence-terminal-geyser-trail-profile"
        ],
        "predicate": "published_route_profile",
        "spatial_scope_ids": [
          "scope-route-terminal-geyser-trail"
        ],
        "subject_id": "route-terminal-geyser-trail",
        "temporal_scope": null,
        "value": {
          "elevation_change_ft": 610,
          "elevation_range_ft": [
            5640,
            5840
          ],
          "high_point_ft": 6250,
          "round_trip_miles": 5.8,
          "round_trip_time_hours": "2.5 to 3",
          "uses_pacific_crest_trail": true
        }
      },
      "evidence": [
        {
          "claim_id": "claim-terminal-geyser-trail-profile",
          "evidence_id": "evidence-terminal-geyser-trail-profile",
          "notes": "",
          "observation_id": "observation-nps-lassen-terminal-geyser-trail-20260923",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Terminal Geyser Trail starts at Warner Valley Trailhead and is 5.8 miles round trip. It follows the PCT to a y-junction serving Dream Lake, Devils Kitchen, and a horse trail, then veers left toward Boiling Springs Lake. A second y-junction is at 0.9 mile, followed by a signed three-way junction southeast of Boiling Springs Lake. At 2.5 miles the route rejoins the PCT; about 25 feet later another junction sends the PCT toward Little Willow Lake while the Terminal Geyser route continues ahead.",
          "observation_id": "observation-nps-lassen-terminal-geyser-trail-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T07:30:00+00:00",
          "source_id": "source-nps-lassen-terminal-geyser-trail"
        }
      ],
      "sources": [
        {
          "locator": "https://www.nps.gov/lavo/planyourvisit/hiking_terminal_geyser.htm",
          "publisher": "National Park Service",
          "source_id": "source-nps-lassen-terminal-geyser-trail"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "route-node-lassen-terminal-pct-divergence",
      "kind": "route_node",
      "name": "Terminal Geyser and PCT divergence"
    },
    {
      "entity_id": "route-node-lassen-terminal-pct-rejoin",
      "kind": "route_node",
      "name": "Terminal Geyser PCT rejoin junction"
    },
    {
      "entity_id": "route-node-lassen-terminal-y-0-9",
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      "name": "Terminal Geyser route junction at 0.9 mile"
    },
    {
      "entity_id": "route-segment-lassen-terminal-boiling-junction-pct-rejoin",
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      "name": "Boiling Springs Lake southeast junction to PCT rejoin"
    },
    {
      "entity_id": "route-segment-lassen-terminal-divergence-destination",
      "kind": "route_segment",
      "name": "PCT divergence to Terminal Geyser"
    },
    {
      "entity_id": "route-segment-lassen-terminal-first-y-second-y",
      "kind": "route_segment",
      "name": "First junction to Terminal route 0.9-mile junction"
    },
    {
      "entity_id": "route-segment-lassen-terminal-pct-rejoin-divergence",
      "kind": "route_segment",
      "name": "PCT rejoin to Terminal Geyser divergence"
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    {
      "entity_id": "route-segment-lassen-terminal-second-y-boiling-junction",
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      "name": "0.9-mile junction to junction southeast of Boiling Springs Lake"
    },
    {
      "entity_id": "route-segment-lassen-warner-start-first-y",
      "kind": "route_segment",
      "name": "Warner Valley Trailhead to first junction"
    },
    {
      "entity_id": "route-terminal-geyser-trail",
      "kind": "route",
      "name": "Terminal Geyser Trail"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260923-lassen-destinations-route-depth",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-nps-lassen-terminal-geyser-trail.json",
      "reason": "Publish official-source Lassen destination identities, named hiking routes, evidenced starts, route profiles, and route-condition rechecks without inventing segment topology.",
      "record_id": "source-nps-lassen-terminal-geyser-trail",
      "record_type": "source",
      "summary": "Add official-source Lassen destinations, named hiking routes, evidenced trailheads, route profiles, and route-condition rechecks while preserving the remaining segment-topology gap."
    }
  ],
  "navigation": {
    "next_id": "source-nps-lassen-trail-conditions",
    "position": 215,
    "previous_id": "source-nps-lassen-significance",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Terminal Geyser Trail starts at Warner Valley Trailhead and is 5.8 miles round trip. It follows the PCT to a y-junction serving Dream Lake, Devils Kitchen, and a horse trail, then veers left toward Boiling Springs Lake. A second y-junction is at 0.9 mile, followed by a signed three-way junction southeast of Boiling Springs Lake. At 2.5 miles the route rejoins the PCT; about 25 feet later another junction sends the PCT toward Little Willow Lake while the Terminal Geyser route continues ahead.",
      "observation_id": "observation-nps-lassen-terminal-geyser-trail-20260923",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-23T07:30:00+00:00",
      "source_id": "source-nps-lassen-terminal-geyser-trail"
    }
  ],
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    "locator": "https://www.nps.gov/lavo/planyourvisit/hiking_terminal_geyser.htm",
    "publisher": "National Park Service",
    "source_id": "source-nps-lassen-terminal-geyser-trail"
  },
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  "sources": [
    {
      "locator": "https://www.nps.gov/lavo/planyourvisit/hiking_terminal_geyser.htm",
      "publisher": "National Park Service",
      "source_id": "source-nps-lassen-terminal-geyser-trail"
    }
  ]
}