{
  "answerability": "evidence_backed_claims_available",
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    {
      "claim": {
        "claim_id": "claim-google-maps-del-valle-hetch-hetchy-coordinate",
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        ],
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        "spatial_scope_ids": [
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        "subject_id": "group-camp-del-valle-hetch-hetchy",
        "temporal_scope": null,
        "value": {
          "latitude": 37.5908125,
          "longitude": -121.7143125,
          "plus_code": "849WH7RP+87",
          "provenance_class": "third_party_labeled_place"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-google-maps-del-valle-hetch-hetchy-coordinate",
          "evidence_id": "evidence-google-maps-del-valle-hetch-hetchy-coordinate",
          "notes": "Supports a separately attributed third-party map point; it does not fill or modify the null GIS fields in the ReserveAmerica site profile.",
          "observation_id": "observation-google-maps-del-valle-hetch-hetchy-coordinate",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Google Maps labeled place",
            "Plus Code"
          ],
          "content": "Google Maps labels Hetch Hetchy at 37.5908125, -121.7143125 and publishes Plus Code 849WH7RP+87. This is a third-party map location, not an EBRPD-published survey coordinate.",
          "observation_id": "observation-google-maps-del-valle-hetch-hetchy-coordinate",
          "observed_at": null,
          "observer": "Wayproof live Chrome source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
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        }
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        {
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          "publisher": "Google Maps",
          "source_id": "source-google-maps-del-valle-hetch-hetchy"
        }
      ],
      "subject": {
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        "kind": "group_campsite",
        "name": "Hetch Hetchy"
      }
    },
    {
      "claim": {
        "claim_id": "claim-reserveamerica-del-valle-site-382-profile",
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        ],
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        "temporal_scope": null,
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            "Hetch Hetchy is a primitive group campsite located near the lake and includes two 6' picnic tables, a serving table, an XL BBQ, a fire circle with seating, and a water spigot. Three pit toilets (ADA) with fans are available at the site; there is no access to showers. Boats can be anchored or launched from site.",
            "SITE ACCESS: Hetch Hetchy can be accessed through the East Shore Trail located at the end of the East Beach Parking lot near the Boat Launch. It is a 3/4 mile hike to the site.",
            "CAPACITY: Minimum 50, maximum 100.",
            "PARKING AND VEHICLES: 19 Parking passes at East Beach parking lot plus 1 for outside the East Beach parking lot gate will be emailed 5-10 days before your reservations begins. Additional passes are not available for purchase. Buses, RVs, trailers, food trucks, or caterers are prohibited. Violators may be cited and/or towed.",
            "ALCOHOL: Beer and wine allowed with permit ($25.00). No hard alcohol. Please call at least 3 days prior to the first night of your reservation to purchase. The permit does not allow the selling of alcoholic beverages, or consumption outside of your designated campsite. Reservation holder must be 21 years of age to purchase beer and wine permit. You are subject to citation for violation of these rules."
          ],
          "amenities": [
            "Pets Allowed"
          ],
          "booking_url": "https://www.reserveamerica.com/explore/del-valle/EB/110003/382/campsite-booking",
          "details": {
            "bbq": true,
            "campfire_allowed": true,
            "checkin_time": "2:00 PM",
            "checkout_time": "12:00 PM",
            "fire_pit": true,
            "looking_for_category": "Boat-in Group Camp, Group Site",
            "maximum_number_of_people": 100,
            "maximum_number_of_vehicles": 20,
            "minimum_number_of_people": 50,
            "pets_allowed": "Domestic",
            "picnic_table": true,
            "site_access": "Boat-In, Hike-In",
            "site_reserve_type": "Site-Specific",
            "type_of_use": "Overnight"
          },
          "latitude": null,
          "listed_capacity": 100,
          "listed_driveway": "",
          "longitude": null,
          "loop": "Primitive Group Camp Seasonal",
          "name": "HETCH HETCHY (100)",
          "product_id": "382",
          "site_type": "GROUP CAMPING"
        }
      },
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        {
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          "evidence_id": "evidence-reserveamerica-del-valle-site-382-profile",
          "notes": "Structured directly from the rendered individual ReserveAmerica site-detail page.",
          "observation_id": "observation-reserveamerica-del-valle-site-382",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Activities & Amenities",
            "Site Details",
            "Alerts and Important Information"
          ],
          "content": "The live site-detail page identifies HETCH HETCHY (100) in Primitive Group Camp Seasonal as GROUP CAMPING, publishes 14 structured detail fields and 5 alert statements, and exposes no GIS latitude or longitude.",
          "observation_id": "observation-reserveamerica-del-valle-site-382",
          "observed_at": null,
          "observer": "Wayproof live Chrome source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-reserveamerica-del-valle-site-382"
        }
      ],
      "sources": [
        {
          "locator": "https://www.reserveamerica.com/explore/del-valle/EB/110003/382/campsite-booking",
          "publisher": "ReserveAmerica / East Bay Regional Park District",
          "source_id": "source-reserveamerica-del-valle-site-382"
        }
      ],
      "subject": {
        "entity_id": "group-camp-del-valle-hetch-hetchy",
        "kind": "group_campsite",
        "name": "Hetch Hetchy"
      }
    }
  ],
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    "name": "Hetch Hetchy"
  },
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        },
        {
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        },
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        },
        {
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          "name": "Eagles View"
        },
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        },
        {
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          "kind": "group_campsite",
          "name": "Venados"
        }
      ],
      "history": [
        {
          "action": "ADD",
          "change_set_id": "wp-20260920-reserveamerica-del-valle-site-details",
          "evidence_refs": [],
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          "reason": "Ingest the complete live ReserveAmerica Del Valle site-detail corpus.",
          "record_id": "gap-del-valle-site-coordinates-unpublished",
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        }
      ],
      "navigation": {
        "next_id": "gap-del-valle-stoplight-meanings",
        "position": 21,
        "previous_id": "gap-del-valle-seasonal-closures-current",
        "total": 299
      },
      "observations": [],
      "record": {
        "gap_id": "gap-del-valle-site-coordinates-unpublished",
        "question": "What are the authoritative coordinates for the nine Del Valle site pages that publish no GIS latitude or longitude?",
        "reason": "ReserveAmerica publishes coordinates for 146 of 155 entries but omits them for Horse Camp #1-#4 and five primitive group camps. Nearby or map-derived points were not substituted.",
        "related_ids": [
          "campsite-reserveamerica-del-valle-465",
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        ]
      },
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        {
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          },
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        },
        {
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        },
        {
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        },
        {
          "record": {
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          },
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        },
        {
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          },
          "record_id": "group-camp-del-valle-ardilla",
          "record_type": "entity"
        },
        {
          "record": {
            "entity_id": "group-camp-del-valle-eagles-view",
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            "name": "Eagles View"
          },
          "record_id": "group-camp-del-valle-eagles-view",
          "record_type": "entity"
        },
        {
          "record": {
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          },
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        },
        {
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            "entity_id": "group-camp-del-valle-hetch-hetchy",
            "kind": "group_campsite",
            "name": "Hetch Hetchy"
          },
          "record_id": "group-camp-del-valle-hetch-hetchy",
          "record_type": "entity"
        },
        {
          "record": {
            "entity_id": "group-camp-del-valle-venados",
            "kind": "group_campsite",
            "name": "Venados"
          },
          "record_id": "group-camp-del-valle-venados",
          "record_type": "entity"
        }
      ],
      "sources": []
    }
  ],
  "history": [
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      "action": "ADD",
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      "evidence_refs": [],
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      "path": "canonical/v0/entities/group-camp-del-valle-hetch-hetchy.json",
      "reason": "Add the official EBRPD Del Valle campground corpus, preserving dated conflicts and live recheck boundaries.",
      "record_id": "group-camp-del-valle-hetch-hetchy",
      "record_type": "entity",
      "summary": "Ingest eight official EBRPD campground sources with current, dated, conflicting, and volatile evidence kept distinct."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-google-maps-del-valle-group-camp-coordinates",
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      "reason": "Add an explicitly third-party Google Maps coordinate without altering the source-faithful ReserveAmerica profile.",
      "record_id": "claim-google-maps-del-valle-hetch-hetchy-coordinate",
      "record_type": "claim",
      "summary": "Add separately attributed Google Maps labeled-place coordinates for four Del Valle group camps while leaving ReserveAmerica GIS omissions and unresolved sites intact."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-reserveamerica-del-valle-site-details",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-reserveamerica-del-valle-site-382-profile.json",
      "reason": "Ingest the complete live ReserveAmerica Del Valle site-detail corpus.",
      "record_id": "claim-reserveamerica-del-valle-site-382-profile",
      "record_type": "claim",
      "summary": "Ingest all 155 live Del Valle ReserveAmerica site-detail pages with structured profiles, exact source lineage, explicit missing coordinates, and preserved inventory and seasonal conflicts."
    }
  ],
  "journey": [],
  "knowledge_gaps": [
    {
      "gap_id": "gap-del-valle-site-coordinates-unpublished",
      "question": "What are the authoritative coordinates for the nine Del Valle site pages that publish no GIS latitude or longitude?",
      "reason": "ReserveAmerica publishes coordinates for 146 of 155 entries but omits them for Horse Camp #1-#4 and five primitive group camps. Nearby or map-derived points were not substituted.",
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        "group-camp-del-valle-eagles-view",
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        "group-camp-del-valle-hetch-hetchy",
        "group-camp-del-valle-venados"
      ]
    }
  ],
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      ],
      "object_id": "group-camp-del-valle-hetch-hetchy",
      "predicate": "lists_site",
      "relationship_id": "relationship-reserveamerica-del-valle-lists-site-382",
      "subject_id": "facility-reserveamerica-del-valle-110003",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}