{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-round-valley-backpack-official",
        "evidence_ids": [
          "evidence-round-valley-backpack-official"
        ],
        "predicate": "site_inventory",
        "spatial_scope_ids": [
          "scope-round-valley-backpack-camp"
        ],
        "subject_id": "backpack-camp-round-valley",
        "temporal_scope": null,
        "value": {
          "ada_restroom": true,
          "dogs_allowed": false,
          "hike_in_distance_miles": 3.6,
          "leveled_tent_spaces": true,
          "maximum_people": 25,
          "minimum_advance_business_days": 2,
          "picnic_table": true,
          "reservation_channel": "phone",
          "site_type": "backpack_camp",
          "water": "non_potable_treat_before_use"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-round-valley-backpack-official",
          "evidence_id": "evidence-round-valley-backpack-official",
          "notes": "Official park camping and dog restriction details.",
          "observation_id": "observation-ebrpd-round-valley-camping-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Camping",
            "Dogs"
          ],
          "content": "Round Valley Backpack Camp holds up to 25, is 3.6 miles from Marsh Creek staging, and has non-potable water, leveled tent spaces, picnic table, and an ADA-accessible restroom. Reservations require two business days. Dogs are prohibited in the park.",
          "observation_id": "observation-ebrpd-round-valley-camping-20260922",
          "observed_at": null,
          "observer": "Wayproof web source review",
          "retrieved_at": "2026-09-22T00:00:00-07:00",
          "source_id": "source-ebrpd-round-valley-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/round-valley",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-round-valley-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-round-valley-visitor-profile",
        "evidence_ids": [
          "evidence-ebrpd-round-valley-visitor-profile"
        ],
        "predicate": "visitor_profile",
        "spatial_scope_ids": [
          "scope-round-valley-regional-preserve"
        ],
        "subject_id": "park-round-valley-regional-preserve",
        "temporal_scope": null,
        "value": {
          "access": "Marsh Creek Road staging area",
          "accessible_staging_facilities": [
            "restrooms",
            "drinking fountain"
          ],
          "acreage": 2191,
          "activities": [
            "biking",
            "camping",
            "hiking",
            "horseback riding"
          ],
          "address": "19450 Marsh Creek Road, Brentwood, CA",
          "backpack_camp": {
            "capacity": 25,
            "facilities": [
              "leveled tent spaces",
              "picnic table",
              "ADA-accessible restroom"
            ],
            "hike_in_miles": 3.6,
            "minimum_advance_business_days": 2,
            "reservation_required": true,
            "water": "normally non-potable and requires boiling, treatment, or filtration; currently unavailable"
          },
          "current_alerts": {
            "as_of": "2026-09-20",
            "backpack_camp_water": "not working until further notice",
            "trail_closure": "Hardy Canyon Trail closed until further notice due to storm damage"
          },
          "dogs_allowed": false,
          "parking_fee_usd": 0,
          "seasonal_gate_hours": "08:00 opening; closing varies from 17:00 to 20:00 by published date bands"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-round-valley-visitor-profile",
          "evidence_id": "evidence-ebrpd-round-valley-visitor-profile",
          "notes": "Direct transcription and conservative structuring of planning-relevant fields from the official park page.",
          "observation_id": "observation-ebrpd-round-valley-visitor-profile",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Overview",
            "To Reach The Park",
            "Attractions"
          ],
          "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
          "observation_id": "observation-ebrpd-round-valley-visitor-profile",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T07:00:00+00:00",
          "source_id": "source-ebrpd-round-valley-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/round-valley",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-round-valley-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "backpack-camp-round-valley",
      "kind": "backcountry_camp",
      "name": "Round Valley Backpack Camp"
    },
    {
      "entity_id": "park-round-valley-regional-preserve",
      "kind": "park",
      "name": "Round Valley Regional Preserve"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-preserves-batch-03",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-ebrpd-round-valley-park-page.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "source-ebrpd-round-valley-park-page",
      "record_type": "source",
      "summary": "Add four additional previously uncaptured EBRPD preserve visitor profiles."
    }
  ],
  "navigation": {
    "next_id": "source-ebrpd-seasonal-closures-2026",
    "position": 78,
    "previous_id": "source-ebrpd-roberts-park-page",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [
        "Camping",
        "Dogs"
      ],
      "content": "Round Valley Backpack Camp holds up to 25, is 3.6 miles from Marsh Creek staging, and has non-potable water, leveled tent spaces, picnic table, and an ADA-accessible restroom. Reservations require two business days. Dogs are prohibited in the park.",
      "observation_id": "observation-ebrpd-round-valley-camping-20260922",
      "observed_at": null,
      "observer": "Wayproof web source review",
      "retrieved_at": "2026-09-22T00:00:00-07:00",
      "source_id": "source-ebrpd-round-valley-park-page"
    },
    {
      "artifact_refs": [
        "Overview",
        "To Reach The Park",
        "Attractions"
      ],
      "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
      "observation_id": "observation-ebrpd-round-valley-visitor-profile",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-20T07:00:00+00:00",
      "source_id": "source-ebrpd-round-valley-park-page"
    }
  ],
  "record": {
    "locator": "https://www.ebparks.org/parks/round-valley",
    "publisher": "East Bay Regional Park District",
    "source_id": "source-ebrpd-round-valley-park-page"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/round-valley",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-round-valley-park-page"
    }
  ]
}