{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-del-valle-ohlone-gateway",
        "evidence_ids": [
          "evidence-del-valle-ohlone-gateway",
          "evidence-del-valle-ebrpd-ohlone-gateway",
          "evidence-ebrpd-ohlone-gateway-current"
        ],
        "predicate": "eastern_gateway",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": "park-del-valle-regional-park"
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-ohlone-gateway",
          "evidence_id": "evidence-del-valle-ohlone-gateway",
          "notes": "",
          "observation_id": "observation-del-valle-ohlone-permit-statement",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-ohlone-gateway",
          "evidence_id": "evidence-del-valle-ebrpd-ohlone-gateway",
          "notes": "",
          "observation_id": "observation-del-valle-ebrpd-identity",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-ohlone-gateway",
          "evidence_id": "evidence-ebrpd-ohlone-gateway-current",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page calls Del Valle the eastern gateway to the Ohlone Wilderness Trail, describes the trail as 28 miles connecting to Sunol and Mission Peak, and states that permits are required on portions and may be purchased at the park entrance kiosk; it separately states that backpack reservations remain available.",
          "observation_id": "observation-del-valle-ohlone-permit-statement",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-reserveamerica-del-valle-overview-110003"
        },
        {
          "artifact_refs": [],
          "content": "The EBRPD page places Del Valle ten miles south of Livermore, describes a five-mile lake in a 4,395-acre park, gives the address 7000 Del Valle Road, and calls the park the eastern gateway to the 28-mile Ohlone Wilderness Trail.",
          "observation_id": "observation-del-valle-ebrpd-identity",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-park-page"
        },
        {
          "artifact_refs": [],
          "content": "The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.reserveamerica.com/explore/del-valle/EB/110003/overview",
          "publisher": "ReserveAmerica / East Bay Regional Park District",
          "source_id": "source-reserveamerica-del-valle-overview-110003"
        },
        {
          "locator": "https://www.ebparks.org/parks/del-valle",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-park-page"
        },
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-dogs-daytime-only",
        "evidence_ids": [
          "evidence-ohlone-dogs-daytime-only"
        ],
        "predicate": "dogs_allowed_period",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-preserve"
        ],
        "subject_id": "park-ohlone-wilderness-regional-preserve",
        "temporal_scope": null,
        "value": "daytime_only"
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-dogs-daytime-only",
          "evidence_id": "evidence-ohlone-dogs-daytime-only",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-hours-dogs",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page publishes seasonal preserve hours and allows dogs during daytime only.",
          "observation_id": "observation-ebrpd-ohlone-hours-dogs",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-hours",
        "evidence_ids": [
          "evidence-ohlone-hours"
        ],
        "predicate": "seasonal_hours",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-preserve"
        ],
        "subject_id": "park-ohlone-wilderness-regional-preserve",
        "temporal_scope": null,
        "value": {
          "Feb 1-Mar 8": "08:00-18:00",
          "Mar 9-May 8": "08:00-20:00",
          "May 9-Nov 1": "08:00-21:00",
          "Nov 2-Jan 31": "08:00-17:00"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-hours",
          "evidence_id": "evidence-ohlone-hours",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-hours-dogs",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page publishes seasonal preserve hours and allows dogs during daytime only.",
          "observation_id": "observation-ebrpd-ohlone-hours-dogs",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-overnight-parking",
        "evidence_ids": [
          "evidence-ohlone-overnight-parking"
        ],
        "predicate": "reserved_overnight_parking",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": {
          "allowed_with_reservation_and_permit": true,
          "locations": [
            "Del Valle",
            "Sunol",
            "Mission Peak"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-overnight-parking",
          "evidence_id": "evidence-ohlone-overnight-parking",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-camping",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Overnight use requires a separate reservation for a designated trail campsite, made by phone at least two days in advance. Reserved overnight parking is allowed at Del Valle, Sunol, and Mission Peak parking lots.",
          "observation_id": "observation-ebrpd-ohlone-camping",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-overnight-reservation",
        "evidence_ids": [
          "evidence-ohlone-overnight-reservation",
          "evidence-ebrpd-sunol-ohlone-overnight-reservation",
          "evidence-reserveamerica-sunol-ohlone-overnight-reservation"
        ],
        "predicate": "overnight_camping_reservation",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": {
          "channel": "phone",
          "designated_sites_only": true,
          "minimum_advance_days": 2,
          "required": true
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-overnight-reservation",
          "evidence_id": "evidence-ohlone-overnight-reservation",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-camping",
          "stance": "supports"
        },
        {
          "claim_id": "claim-ohlone-overnight-reservation",
          "evidence_id": "evidence-ebrpd-sunol-ohlone-overnight-reservation",
          "notes": "The Sunol park page corroborates designated-site reservation and two-business-day advance requirements.",
          "observation_id": "observation-ebrpd-sunol-ohlone-policy",
          "stance": "supports"
        },
        {
          "claim_id": "claim-ohlone-overnight-reservation",
          "evidence_id": "evidence-reserveamerica-sunol-ohlone-overnight-reservation",
          "notes": "The booking overview corroborates the overnight reservation requirement and expresses the lead time as 48 hours.",
          "observation_id": "observation-reserveamerica-sunol-overview",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Overnight use requires a separate reservation for a designated trail campsite, made by phone at least two days in advance. Reserved overnight parking is allowed at Del Valle, Sunol, and Mission Peak parking lots.",
          "observation_id": "observation-ebrpd-ohlone-camping",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "artifact_refs": [
            "Ohlone Wilderness Trail"
          ],
          "content": "The page states that as of January 1, 2026 an Ohlone permit is not required and no additional permits will be sold. Overnight backpacking reservations remain required, and designated Ohlone Trail campsites require advance reservation two or more business days ahead.",
          "observation_id": "observation-ebrpd-sunol-ohlone-policy",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-sunol-park-page"
        },
        {
          "artifact_refs": [
            "Important Information",
            "Description",
            "Recreation",
            "Facilities"
          ],
          "content": "The rendered overview identifies Sunol as an EBRPD campsite facility with limited backpack sites, describes the Ohlone Wilderness Trail as a hiking destination, and requires backpack reservations for overnight stays at least 48 hours in advance.",
          "observation_id": "observation-reserveamerica-sunol-overview",
          "observed_at": null,
          "observer": "Wayproof live Chrome source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-reserveamerica-sunol-overview"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "locator": "https://www.ebparks.org/parks/sunol",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-sunol-park-page"
        },
        {
          "locator": "https://www.reserveamerica.com/explore/sunol/EB/110028/overview",
          "publisher": "ReserveAmerica / East Bay Regional Park District",
          "source_id": "source-reserveamerica-sunol-overview"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-preserve-identity",
        "evidence_ids": [
          "evidence-ohlone-preserve-identity"
        ],
        "predicate": "published_identity",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-preserve"
        ],
        "subject_id": "park-ohlone-wilderness-regional-preserve",
        "temporal_scope": null,
        "value": {
          "access": "ohlone_wilderness_trail_only",
          "area_acres": 9737
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-preserve-identity",
          "evidence_id": "evidence-ohlone-preserve-identity",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-identity",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The official page describes a 9,737-acre preserve accessible only via the Ohlone Wilderness Trail, with 3,817-foot Rose Peak as its centerpiece.",
          "observation_id": "observation-ebrpd-ohlone-identity",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-trail-permit-not-required-2026",
        "evidence_ids": [
          "evidence-ohlone-trail-permit-not-required-2026",
          "evidence-ebrpd-sunol-ohlone-permit-not-required-2026"
        ],
        "predicate": "trail_permit_required",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-01-01"
        },
        "value": false
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-trail-permit-not-required-2026",
          "evidence_id": "evidence-ohlone-trail-permit-not-required-2026",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-permit-2026",
          "stance": "supports"
        },
        {
          "claim_id": "claim-ohlone-trail-permit-not-required-2026",
          "evidence_id": "evidence-ebrpd-sunol-ohlone-permit-not-required-2026",
          "notes": "The Sunol park page independently corroborates the Ohlone park page's effective-date statement.",
          "observation_id": "observation-ebrpd-sunol-ohlone-policy",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "As of 2026-01-01, an Ohlone trail permit is not required and no additional permits will be sold. An overnight backpacking reservation is still required.",
          "observation_id": "observation-ebrpd-ohlone-permit-2026",
          "observed_at": "2026-01-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "artifact_refs": [
            "Ohlone Wilderness Trail"
          ],
          "content": "The page states that as of January 1, 2026 an Ohlone permit is not required and no additional permits will be sold. Overnight backpacking reservations remain required, and designated Ohlone Trail campsites require advance reservation two or more business days ahead.",
          "observation_id": "observation-ebrpd-sunol-ohlone-policy",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-sunol-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "locator": "https://www.ebparks.org/parks/sunol",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-sunol-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-trail-traversed-parks",
        "evidence_ids": [
          "evidence-ohlone-trail-traversed-parks"
        ],
        "predicate": "traversed_parks",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": [
          "park-ohlone-wilderness-regional-preserve",
          "park-mission-peak-regional-preserve",
          "park-sunol-wilderness-regional-preserve",
          "park-del-valle-regional-park"
        ]
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-trail-traversed-parks",
          "evidence_id": "evidence-ohlone-trail-traversed-parks",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-trail-use",
        "evidence_ids": [
          "evidence-ohlone-trail-use",
          "evidence-ohlone-map-trail-use"
        ],
        "predicate": "trail_use",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": {
          "bicycles": false,
          "distance_miles": 28,
          "equestrians": true,
          "hikers": true,
          "motor_vehicles": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-trail-use",
          "evidence_id": "evidence-ohlone-trail-use",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "stance": "supports"
        },
        {
          "claim_id": "claim-ohlone-trail-use",
          "evidence_id": "evidence-ohlone-map-trail-use",
          "notes": "",
          "observation_id": "observation-ohlone-map-restrictions",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map repeatedly says stay on trail and no bicycles, identifies the Ohlone Wilderness Trail for hikers and horses only, and marks service roads and land-bank areas as no access. It requires staying on the trail in San Francisco Water Department land.",
          "observation_id": "observation-ohlone-map-restrictions",
          "observed_at": "2025-08-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ohlone-Wilderness-Permit-Map-11x17.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ohlone-water-availability-20260919",
        "evidence_ids": [
          "evidence-ohlone-water-availability-20260919"
        ],
        "predicate": "reported_water_availability",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": {
          "ends_on": "2026-09-19",
          "starts_on": "2026-09-19"
        },
        "value": {
          "available": [
            "Eagle Springs",
            "Backpack Camp",
            "Doe Camp",
            "Maggie's Half Acre",
            "Boyd Camp",
            "Stromer Springs",
            "Stewart's Camp"
          ],
          "potable": false,
          "required_treatment": [
            "filter",
            "treat",
            "boil"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-water-availability-20260919",
          "evidence_id": "evidence-ohlone-water-availability-20260919",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-water-20260919",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Updated 2026-09-19: Eagle Springs, Backpack Camp, Doe Camp, Maggie's Half Acre, Boyd Camp, Stromer Springs, and Stewart's Camp report water available. All water is non-potable and must be filtered, treated, or boiled for human consumption.",
          "observation_id": "observation-ebrpd-ohlone-water-20260919",
          "observed_at": "2026-09-19T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-rose-peak-ohlone",
        "evidence_ids": [
          "evidence-rose-peak-ohlone",
          "evidence-ohlone-map-rose-peak"
        ],
        "predicate": "published_elevation_feet",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-preserve"
        ],
        "subject_id": "peak-rose",
        "temporal_scope": null,
        "value": 3817
      },
      "evidence": [
        {
          "claim_id": "claim-rose-peak-ohlone",
          "evidence_id": "evidence-rose-peak-ohlone",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-identity",
          "stance": "supports"
        },
        {
          "claim_id": "claim-rose-peak-ohlone",
          "evidence_id": "evidence-ohlone-map-rose-peak",
          "notes": "",
          "observation_id": "observation-ohlone-map-rose-peak",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The official page describes a 9,737-acre preserve accessible only via the Ohlone Wilderness Trail, with 3,817-foot Rose Peak as its centerpiece.",
          "observation_id": "observation-ebrpd-ohlone-identity",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map labels Rose Peak at 3,817 feet and uses a 1:28,750 scale with 40-foot contour intervals.",
          "observation_id": "observation-ohlone-map-rose-peak",
          "observed_at": "2025-08-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ohlone-Wilderness-Permit-Map-11x17.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-ohlone-wilderness-regional-preserve",
      "kind": "park",
      "name": "Ohlone Wilderness Regional Preserve"
    },
    {
      "entity_id": "peak-rose",
      "kind": "peak",
      "name": "Rose Peak"
    },
    {
      "entity_id": "trail-ohlone-wilderness",
      "kind": "trail",
      "name": "Ohlone Wilderness Trail"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-ohlone-park-page",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-ebrpd-ohlone-park-page.json",
      "reason": "Add the official Ohlone preserve page, resolve the 2026 permit change, and date volatile water status.",
      "record_id": "source-ebrpd-ohlone-park-page",
      "record_type": "source",
      "summary": "Ingest the official Ohlone preserve page, resolve the obsolete permit ambiguity, and preserve dated water availability."
    }
  ],
  "navigation": {
    "next_id": "source-ebrpd-ohlone-wilderness-map-2025-08",
    "position": 66,
    "previous_id": "source-ebrpd-morgan-territory-park-page",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Overnight use requires a separate reservation for a designated trail campsite, made by phone at least two days in advance. Reserved overnight parking is allowed at Del Valle, Sunol, and Mission Peak parking lots.",
      "observation_id": "observation-ebrpd-ohlone-camping",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "artifact_refs": [],
      "content": "The page publishes seasonal preserve hours and allows dogs during daytime only.",
      "observation_id": "observation-ebrpd-ohlone-hours-dogs",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "artifact_refs": [],
      "content": "The official page describes a 9,737-acre preserve accessible only via the Ohlone Wilderness Trail, with 3,817-foot Rose Peak as its centerpiece.",
      "observation_id": "observation-ebrpd-ohlone-identity",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "artifact_refs": [],
      "content": "As of 2026-01-01, an Ohlone trail permit is not required and no additional permits will be sold. An overnight backpacking reservation is still required.",
      "observation_id": "observation-ebrpd-ohlone-permit-2026",
      "observed_at": "2026-01-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "artifact_refs": [],
      "content": "The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.",
      "observation_id": "observation-ebrpd-ohlone-trail",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "artifact_refs": [],
      "content": "Updated 2026-09-19: Eagle Springs, Backpack Camp, Doe Camp, Maggie's Half Acre, Boyd Camp, Stromer Springs, and Stewart's Camp report water available. All water is non-potable and must be filtered, treated, or boiled for human consumption.",
      "observation_id": "observation-ebrpd-ohlone-water-20260919",
      "observed_at": "2026-09-19T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    }
  ],
  "record": {
    "locator": "https://www.ebparks.org/parks/ohlone",
    "publisher": "East Bay Regional Park District",
    "source_id": "source-ebrpd-ohlone-park-page"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/ohlone",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-ohlone-park-page"
    }
  ]
}