{
  "claims": [],
  "entities": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260922-lassen-nps-foundation",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-nps-lassen-getting-around.json",
      "reason": "Publish a bounded source-backed Lassen Volcanic National Park planning foundation from current official NPS and linked first-party operational sources.",
      "record_id": "source-nps-lassen-getting-around",
      "record_type": "source",
      "summary": "Add a bounded official-source Lassen Volcanic National Park planning foundation with explicit source conflict, operational rechecks, and deferred-detail gaps."
    }
  ],
  "navigation": {
    "next_id": "source-nps-lassen-hydrothermal",
    "position": 209,
    "previous_id": "source-nps-lassen-fees",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "The 30-mile Lassen Park Highway is the only through road; remote-area roads serve Butte Lake, Juniper Lake, and Warner Valley and are not maintained for winter travel.",
      "observation_id": "observation-nps-lassen-getting-around-20260922",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-22T19:00:00+00:00",
      "source_id": "source-nps-lassen-getting-around"
    }
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  "record": {
    "locator": "https://www.nps.gov/lavo/planyourvisit/gettingaround.htm",
    "publisher": "National Park Service",
    "source_id": "source-nps-lassen-getting-around"
  },
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  "sources": [
    {
      "locator": "https://www.nps.gov/lavo/planyourvisit/gettingaround.htm",
      "publisher": "National Park Service",
      "source_id": "source-nps-lassen-getting-around"
    }
  ]
}