Hydrothermal area
Plan with 1 source-backed fact, 2 related records, and explicit uncertainty.
Evidence stance: supports · Evidence details
NPS identifies Bumpass Hell, Sulphur Works, Devils Kitchen, Boiling Springs Lake, and Terminal Geyser as hydrothermal destinations and requires visitors to remain on established trails or boardwalks.
Observation details · Source details · Original source: National Park Service
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wp-20260923-lassen-destinations-route-depth — ADD hydrothermal-area-sulphur-works: Publish official-source Lassen destination identities, named hiking routes, evidenced starts, route profiles, and route-condition rechecks without inventing segment topology.wp-20260923-lassen-destinations-route-depth — ADD claim-sulphur-works-access: Publish official-source Lassen destination identities, named hiking routes, evidenced starts, route profiles, and route-condition rechecks without inventing segment topology.