{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-anthony-chabot-campground-profile",
        "evidence_ids": [
          "evidence-anthony-chabot-campground-profile"
        ],
        "predicate": "site_inventory",
        "spatial_scope_ids": [
          "scope-anthony-chabot-family-campground"
        ],
        "subject_id": "campground-anthony-chabot-family",
        "temporal_scope": null,
        "value": {
          "checkin": "14:00",
          "checkout": "12:00",
          "developed_group_sites": 1,
          "drive_up_tent_sites": 53,
          "dump_station": true,
          "flush_toilets": true,
          "gate_hours": "08:00-22:00",
          "hike_in_are_backpack_sites": false,
          "hike_in_site_numbers": "13-22",
          "hike_in_tent_sites": 10,
          "hot_showers": true,
          "rv_full_hookup_sites": 12,
          "total_sites": 75
        }
      },
      "evidence": [
        {
          "claim_id": "claim-anthony-chabot-campground-profile",
          "evidence_id": "evidence-anthony-chabot-campground-profile",
          "notes": "The official campground page directly publishes inventory, facilities, hours, fees, lead times, and group-camp details.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Camping Fees and Charges",
            "Group Campsites",
            "Family Campground Map"
          ],
          "content": "The current campground page lists 75 campsites: 12 full-hookup RV sites, one developed group site, 53 drive-up tent sites, and 10 hike-in tent sites numbered 13-22 that are explicitly not backpack sites. It publishes family and group fees, reservation lead times, gate and quiet hours, facilities, group-camp capacities, and an October 12-November 30, 2026 family-campground closure.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-21T00:00:00-07:00",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/anthony-chabot/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-anthony-chabot-family-closure-2026",
        "evidence_ids": [
          "evidence-anthony-chabot-closure-2026"
        ],
        "predicate": "operating_status",
        "spatial_scope_ids": [
          "scope-anthony-chabot-family-campground"
        ],
        "subject_id": "campground-anthony-chabot-family",
        "temporal_scope": {
          "ends_on": "2026-11-30",
          "starts_on": "2026-10-12"
        },
        "value": {
          "affected": [
            "campsites",
            "RV sewage disposal station"
          ],
          "reason": "restroom improvements and hazardous tree work",
          "status": "closed"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-anthony-chabot-family-closure-2026",
          "evidence_id": "evidence-anthony-chabot-closure-2026",
          "notes": "The live official page gives exact closure dates and affected family-campground facilities.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Camping Fees and Charges",
            "Group Campsites",
            "Family Campground Map"
          ],
          "content": "The current campground page lists 75 campsites: 12 full-hookup RV sites, one developed group site, 53 drive-up tent sites, and 10 hike-in tent sites numbered 13-22 that are explicitly not backpack sites. It publishes family and group fees, reservation lead times, gate and quiet hours, facilities, group-camp capacities, and an October 12-November 30, 2026 family-campground closure.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-21T00:00:00-07:00",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/anthony-chabot/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-anthony-chabot-fees",
        "evidence_ids": [
          "evidence-anthony-chabot-fees"
        ],
        "predicate": "fees",
        "spatial_scope_ids": [
          "scope-anthony-chabot-family-campground"
        ],
        "subject_id": "campground-anthony-chabot-family",
        "temporal_scope": null,
        "value": {
          "group_camp_fees_usd": {
            "Bort Meadow": 200,
            "El Venado": 75,
            "Hawk Ridge": 175,
            "Lookout Ridge": 75,
            "Lost Ridge": 125,
            "Puma Point": 100,
            "Two Rocks": 75
          },
          "hike_in_tent_usd": 25,
          "reservation_fee_usd": 8,
          "rv_full_hookup_usd": 45,
          "tent_or_rv_no_hookup_usd": 35
        }
      },
      "evidence": [
        {
          "claim_id": "claim-anthony-chabot-fees",
          "evidence_id": "evidence-anthony-chabot-fees",
          "notes": "The official camping page publishes current family and group nightly fees and the reservation fee.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Camping Fees and Charges",
            "Group Campsites",
            "Family Campground Map"
          ],
          "content": "The current campground page lists 75 campsites: 12 full-hookup RV sites, one developed group site, 53 drive-up tent sites, and 10 hike-in tent sites numbered 13-22 that are explicitly not backpack sites. It publishes family and group fees, reservation lead times, gate and quiet hours, facilities, group-camp capacities, and an October 12-November 30, 2026 family-campground closure.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-21T00:00:00-07:00",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/anthony-chabot/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-anthony-chabot-reservation-window",
        "evidence_ids": [
          "evidence-anthony-chabot-reservation-window"
        ],
        "predicate": "reservation_window",
        "spatial_scope_ids": [
          "scope-anthony-chabot-family-campground"
        ],
        "subject_id": "campground-anthony-chabot-family",
        "temporal_scope": null,
        "value": {
          "ada_and_group_channel": "phone_only",
          "channel": "online_or_phone",
          "family_minimum_advance_business_days": 2,
          "group_minimum_advance_business_days": 3
        }
      },
      "evidence": [
        {
          "claim_id": "claim-anthony-chabot-reservation-window",
          "evidence_id": "evidence-anthony-chabot-reservation-window",
          "notes": "The official page states family sites require at least two business days and group sites at least three business days advance reservation.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Camping Fees and Charges",
            "Group Campsites",
            "Family Campground Map"
          ],
          "content": "The current campground page lists 75 campsites: 12 full-hookup RV sites, one developed group site, 53 drive-up tent sites, and 10 hike-in tent sites numbered 13-22 that are explicitly not backpack sites. It publishes family and group fees, reservation lead times, gate and quiet hours, facilities, group-camp capacities, and an October 12-November 30, 2026 family-campground closure.",
          "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-21T00:00:00-07:00",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/anthony-chabot/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-anthony-chabot-camping-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "campground-anthony-chabot-family",
      "kind": "campground",
      "name": "Anthony Chabot Family Campground"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260921-parks-deep-batch-01-campgrounds",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-anthony-chabot-camping-20260921.json",
      "reason": "Capture the official campground publication observed on 2026-09-21.",
      "record_id": "observation-ebrpd-anthony-chabot-camping-20260921",
      "record_type": "observation",
      "summary": "Deepen Anthony Chabot and Dumbarton Quarry campground knowledge through the existing evidence, planning, publication, and website flow."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-anthony-chabot-visitor-profile",
    "position": 53,
    "previous_id": "observation-ebrpd-algae-monitoring",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "Camping Fees and Charges",
        "Group Campsites",
        "Family Campground Map"
      ],
      "content": "The current campground page lists 75 campsites: 12 full-hookup RV sites, one developed group site, 53 drive-up tent sites, and 10 hike-in tent sites numbered 13-22 that are explicitly not backpack sites. It publishes family and group fees, reservation lead times, gate and quiet hours, facilities, group-camp capacities, and an October 12-November 30, 2026 family-campground closure.",
      "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-21T00:00:00-07:00",
      "source_id": "source-ebrpd-anthony-chabot-camping-page"
    }
  ],
  "record": {
    "artifact_refs": [
      "Camping Fees and Charges",
      "Group Campsites",
      "Family Campground Map"
    ],
    "content": "The current campground page lists 75 campsites: 12 full-hookup RV sites, one developed group site, 53 drive-up tent sites, and 10 hike-in tent sites numbered 13-22 that are explicitly not backpack sites. It publishes family and group fees, reservation lead times, gate and quiet hours, facilities, group-camp capacities, and an October 12-November 30, 2026 family-campground closure.",
    "observation_id": "observation-ebrpd-anthony-chabot-camping-20260921",
    "observed_at": null,
    "observer": "Wayproof live source review",
    "retrieved_at": "2026-09-21T00:00:00-07:00",
    "source_id": "source-ebrpd-anthony-chabot-camping-page"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/anthony-chabot/camping",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-anthony-chabot-camping-page"
    }
  ]
}