{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-sunol-backpack-map-layout-2015",
        "evidence_ids": [
          "evidence-ebrpd-sunol-camping-map-layout"
        ],
        "predicate": "historical_mapped_site_layout",
        "spatial_scope_ids": [
          "scope-sunol-backpack-camp"
        ],
        "subject_id": "camp-ohlone-map-sunol-backpack",
        "temporal_scope": {
          "ends_on": "2015-01-01",
          "starts_on": "2015-01-01"
        },
        "value": {
          "depicted_sites": [
            "Sycamore",
            "Stars Rest",
            "Hawks Nest",
            "Eagles Eyrie",
            "Sky Camp",
            "Cathedral",
            "Oak View"
          ],
          "has_shared_drinking_water_symbol": true,
          "has_shared_restroom_symbol": true,
          "measured_site_facility_distances": null,
          "site_coordinates": null
        }
      },
      "evidence": [
        {
          "claim_id": "claim-sunol-backpack-map-layout-2015",
          "evidence_id": "evidence-ebrpd-sunol-camping-map-layout",
          "notes": "Supports relative layout only. The 2015 map provides neither coordinates nor measured facility proximity.",
          "observation_id": "observation-ebrpd-sunol-camping-map-site-layout",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map depicts the relative locations of Sycamore, Stars Rest, Hawks Nest, Eagles Eyrie, Sky Camp, Cathedral, and Oak View within the Sunol Backpack Camping Area. It also depicts shared drinking-water and restroom symbols. The map does not publish GIS coordinates or measured site-to-facility distances.",
          "observation_id": "observation-ebrpd-sunol-camping-map-site-layout",
          "observed_at": "2015-01-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-sunol-camping-map-2015"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/maps/sunol-camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-sunol-camping-map-2015"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "camp-ohlone-map-sunol-backpack",
      "kind": "backcountry_camp",
      "name": "Sunol Backpack Camp"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ohlone-official-camping-sources",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-ebrpd-sunol-camping-map-2015.json",
      "reason": "Ingest three official EBRPD sources while retaining source age and unresolved precision gaps.",
      "record_id": "source-ebrpd-sunol-camping-map-2015",
      "record_type": "source",
      "summary": "Ingest official Ohlone camping sources, Google-labeled campsite coordinates, firsthand Backpack Camp spigot and pit-toilet observations, and source-specific Eagles Aerie/Eyrie naming; preserve provenance boundaries and unresolved authoritative-coordinate and measured-proximity gaps."
    }
  ],
  "navigation": {
    "next_id": "source-ebrpd-sunol-park-page",
    "position": 83,
    "previous_id": "source-ebrpd-sobrante-ridge-park-page",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [
        "PDF page 1"
      ],
      "content": "The January 2015 brochure describes Sycamore as very shady, Cathedral as densely shaded and cool in summer, and the other five sites by their views. It gives capacities of 3 to 30 people. These are historical brochure statements; current ReserveAmerica site pages independently corroborate capacities and most shade fields. Fees, reservation procedures, closures, and other operating rules printed in this older brochure are not treated as current facts.",
      "observation_id": "observation-ebrpd-sunol-camping-map-site-descriptions",
      "observed_at": "2015-01-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-sunol-camping-map-2015"
    },
    {
      "artifact_refs": [
        "PDF page 1"
      ],
      "content": "The map depicts the relative locations of Sycamore, Stars Rest, Hawks Nest, Eagles Eyrie, Sky Camp, Cathedral, and Oak View within the Sunol Backpack Camping Area. It also depicts shared drinking-water and restroom symbols. The map does not publish GIS coordinates or measured site-to-facility distances.",
      "observation_id": "observation-ebrpd-sunol-camping-map-site-layout",
      "observed_at": "2015-01-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-sunol-camping-map-2015"
    }
  ],
  "record": {
    "locator": "https://www.ebparks.org/maps/sunol-camping",
    "publisher": "East Bay Regional Park District",
    "source_id": "source-ebrpd-sunol-camping-map-2015"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/maps/sunol-camping",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-sunol-camping-map-2015"
    }
  ]
}