{
  "schema": 1,
  "checked_utc": "2026-10-02T09:43:09.488031+00:00",
  "candidate_count": 13,
  "selected_count": 6,
  "completed_packet_count": 6,
  "density_note": "Return density is actual usable returns divided by horizontal crop area, including multiple echoes and overlapping flight lines. It is not a uniform pulse spacing, accuracy or hidden-surface coverage measure. Null means not measured.",
  "ground_scan_audit": "evidence/sources/scan-catalog-audit.json",
  "rows": [
    {
      "id": "boat-mesa",
      "name": "Boat Mesa",
      "decision": "selected independent landscape",
      "locator": {
        "source_id": "gnis-north",
        "feature_id": 1438979,
        "role": "summit name locator",
        "official_record": {
          "attributes": {
            "OBJECTID": 218552,
            "gaz_id": 1438979,
            "gaz_name": "Boat Mesa",
            "gaz_featureclass": "Summit",
            "fcode": 15048,
            "state_alpha": "UT",
            "county_name": "Garfield",
            "objectid_1": 1823749,
            "isunknowncoords": 2
          },
          "geometry": {
            "points": [
              [
                -112.14557747648571,
                37.641989522747
              ]
            ]
          }
        }
      },
      "width_m": 1024,
      "source_ids": [
        "gnis-north",
        "nps-fairyland"
      ],
      "educational_value": "How does a broad cap give way to an edge of fins?",
      "geometry": "USGS UT Southern QL1 2018 airborne returns; bounded crop acquired",
      "density_returns_per_m2": 36.036,
      "returns_in_crop": 37786985,
      "mask": [],
      "terrestrial_scan": "No downloadable, provenance-verified ground scan obtained for this feature",
      "photography": "2024 USDA NAIP, 0.6 m overhead; exact flights/rasters in imagery.json",
      "rights": "USGS/USDA government data; OSM locator separately under ODbL where used; NPS primary reading linked",
      "limits": "No undercuts, interiors, wall photography, route or erosion clock. Source density is not hidden-surface completeness.",
      "next_capture": "A future licensed, registered ground survey would need converging views of hidden surfaces; no capture or outreach authorized."
    },
    {
      "id": "sinking-ship",
      "name": "Sinking Ship",
      "decision": "selected independent landscape",
      "locator": {
        "source_id": "gnis-north",
        "feature_id": 1445620,
        "role": "summit name locator",
        "official_record": {
          "attributes": {
            "OBJECTID": 138950,
            "gaz_id": 1445620,
            "gaz_name": "Sinking Ship",
            "gaz_featureclass": "Summit",
            "fcode": 15048,
            "state_alpha": "UT",
            "county_name": "Garfield",
            "objectid_1": 1505698,
            "isunknowncoords": 2
          },
          "geometry": {
            "points": [
              [
                -112.1166757533726,
                37.64021444009447
              ]
            ]
          }
        }
      },
      "width_m": 768,
      "source_ids": [
        "gnis-north",
        "nps-fairyland"
      ],
      "educational_value": "What can a tilted skyline tell us—and what can a terrain surface not measure?",
      "geometry": "USGS UT Southern QL1 2018 airborne returns; bounded crop acquired",
      "density_returns_per_m2": 31.253,
      "returns_in_crop": 18433800,
      "mask": [],
      "terrestrial_scan": "No downloadable, provenance-verified ground scan obtained for this feature",
      "photography": "2024 USDA NAIP, 0.6 m overhead; exact flights/rasters in imagery.json",
      "rights": "USGS/USDA government data; OSM locator separately under ODbL where used; NPS primary reading linked",
      "limits": "No undercuts, interiors, wall photography, route or erosion clock. Source density is not hidden-surface completeness.",
      "next_capture": "A future licensed, registered ground survey would need converging views of hidden surfaces; no capture or outreach authorized."
    },
    {
      "id": "china-wall",
      "name": "China Wall",
      "decision": "selected independent landscape",
      "locator": {
        "source_id": "gnis-north",
        "feature_id": 1439695,
        "official_name": "Chinese Wall",
        "role": "cliff name locator",
        "official_record": {
          "attributes": {
            "OBJECTID": 107525,
            "gaz_id": 1439695,
            "gaz_name": "Chinese Wall",
            "gaz_featureclass": "Cliff",
            "fcode": 15022,
            "state_alpha": "UT",
            "county_name": "Garfield",
            "objectid_1": 466497,
            "isunknowncoords": 2
          },
          "geometry": {
            "points": [
              [
                -112.1535390112869,
                37.63332185329902
              ]
            ]
          }
        }
      },
      "width_m": 512,
      "source_ids": [
        "gnis-north",
        "nps-china-archive",
        "usgs-geology"
      ],
      "educational_value": "When does a wall begin to read as separate towers?",
      "geometry": "USGS UT Southern QL1 2018 airborne returns; bounded crop acquired",
      "density_returns_per_m2": 27.513,
      "returns_in_crop": 7212433,
      "mask": [],
      "terrestrial_scan": "No downloadable, provenance-verified ground scan obtained for this feature",
      "photography": "2024 USDA NAIP, 0.6 m overhead; exact flights/rasters in imagery.json",
      "rights": "USGS/USDA government data; OSM locator separately under ODbL where used; NPS primary reading linked",
      "limits": "No undercuts, interiors, wall photography, route or erosion clock. Source density is not hidden-surface completeness.",
      "next_capture": "A future licensed, registered ground survey would need converging views of hidden surfaces; no capture or outreach authorized."
    },
    {
      "id": "tower-bridge",
      "name": "Around Tower Bridge",
      "decision": "selected independent landscape",
      "locator": {
        "source_id": "osm-locators",
        "node_id": 391696698,
        "longitude": -112.1447304,
        "latitude": 37.6316064,
        "role": "named rock locator; distinct from NPS viewpoint and trailhead",
        "accuracy": "Not surveyed; checked against official regional mapping. NPS viewpoint is a different feature."
      },
      "width_m": 512,
      "source_ids": [
        "nps-tower",
        "nps-pois",
        "osm-locators"
      ],
      "educational_value": "How can we show the landscape without inventing the arch underneath?",
      "geometry": "USGS UT Southern QL1 2018 airborne returns; bounded crop acquired",
      "density_returns_per_m2": 30.291,
      "returns_in_crop": 7940567,
      "mask": [
        {
          "id": "tower-bridge-unknown",
          "center": [
            -112.1449,
            37.63177
          ],
          "radii_m": [
            70,
            60
          ],
          "reason": "Unresolved Tower Bridge arch, pillars and underside. Conservative context mask includes locator disagreement; no opening geometry is invented."
        }
      ],
      "terrestrial_scan": "No downloadable, provenance-verified ground scan obtained for this feature",
      "photography": "2024 USDA NAIP, 0.6 m overhead; exact flights/rasters in imagery.json",
      "rights": "USGS/USDA government data; OSM locator separately under ODbL where used; NPS primary reading linked",
      "limits": "No undercuts, interiors, wall photography, route or erosion clock. Source density is not hidden-surface completeness.",
      "next_capture": "A future licensed, registered ground survey would need converging views of hidden surfaces; no capture or outreach authorized."
    },
    {
      "id": "mossy-cave-waterfall",
      "name": "Mossy Cave drainage",
      "decision": "selected independent landscape",
      "locator": {
        "source_id": "nps-pois",
        "object_id": 1994,
        "longitude": -112.11432971963777,
        "latitude": 37.6653382694994,
        "role": "mapped waterfall, not trailhead",
        "accuracy": "Scaled from imagery and existing trail data; not a surveyed drop location"
      },
      "width_m": 640,
      "source_ids": [
        "nps-mossy",
        "nps-mossy-wayside",
        "nps-pois"
      ],
      "educational_value": "Where does a water-cut channel meet the hoodoo landscape?",
      "geometry": "USGS UT Southern QL1 2018 airborne returns; bounded crop acquired",
      "density_returns_per_m2": 27.162,
      "returns_in_crop": 11125384,
      "mask": [
        {
          "id": "mossy-cave-unknown",
          "center": [
            -112.11463263651514,
            37.663630939270874
          ],
          "radii_m": [
            35,
            30
          ],
          "reason": "Mossy Cave alcove and overhang excluded; airborne topography does not resolve its interior."
        }
      ],
      "terrestrial_scan": "No downloadable, provenance-verified ground scan obtained for this feature",
      "photography": "2024 USDA NAIP, 0.6 m overhead; exact flights/rasters in imagery.json",
      "rights": "USGS/USDA government data; OSM locator separately under ODbL where used; NPS primary reading linked",
      "limits": "No undercuts, interiors, wall photography, route or erosion clock. Source density is not hidden-surface completeness.",
      "next_capture": "A future licensed, registered ground survey would need converging views of hidden surfaces; no capture or outreach authorized."
    },
    {
      "id": "bristlecone-point",
      "name": "Bristlecone Point",
      "decision": "selected independent landscape",
      "locator": {
        "source_id": "gnis-north",
        "feature_id": 1439124,
        "role": "summit represented by two published locators; editorial crop contains both",
        "accuracy": "Named-feature coordinates, not a surveyed boundary",
        "official_record": {
          "attributes": {
            "OBJECTID": 126601,
            "gaz_id": 1439124,
            "gaz_name": "Bristlecone Point",
            "gaz_featureclass": "Summit",
            "fcode": 15048,
            "state_alpha": "UT",
            "county_name": "Garfield",
            "objectid_1": 1820309,
            "isunknowncoords": 2
          },
          "geometry": {
            "points": [
              [
                -112.13358647391745,
                37.6243883734675
              ],
              [
                -112.13361806856432,
                37.62569277044478
              ]
            ]
          }
        }
      },
      "width_m": 640,
      "source_ids": [
        "gnis-north",
        "usgs-field-guide"
      ],
      "educational_value": "How does an isolated ridge divide the surrounding hollows?",
      "geometry": "USGS UT Southern QL1 2018 airborne returns; bounded crop acquired",
      "density_returns_per_m2": 29.932,
      "returns_in_crop": 12260086,
      "mask": [],
      "terrestrial_scan": "No downloadable, provenance-verified ground scan obtained for this feature",
      "photography": "2024 USDA NAIP, 0.6 m overhead; exact flights/rasters in imagery.json",
      "rights": "USGS/USDA government data; OSM locator separately under ODbL where used; NPS primary reading linked",
      "limits": "No undercuts, interiors, wall photography, route or erosion clock. Source density is not hidden-surface completeness.",
      "next_capture": "A future licensed, registered ground survey would need converging views of hidden surfaces; no capture or outreach authorized."
    },
    {
      "id": "campbell-canyon",
      "name": "Campbell Canyon",
      "decision": "deferred: broad valley overlaps the Boat Mesa / China Wall / Tower Bridge context; no second count",
      "official_record": {
        "attributes": {
          "OBJECTID": 96497,
          "gaz_id": 1439453,
          "gaz_name": "Campbell Canyon",
          "gaz_featureclass": "Valley",
          "fcode": 15050,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 1820306,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.12535036545643,
              37.63335544166212
            ],
            [
              -112.16134781542179,
              37.63962471399547
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north",
        "nps-fairyland"
      ],
      "educational_value": "Contrast remnants and surrounding valley",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    },
    {
      "id": "fairyland-canyon",
      "name": "Fairyland Canyon",
      "decision": "deferred: broad footprint overlaps the completed Fairyland Point study; no renamed camera view",
      "official_record": {
        "attributes": {
          "OBJECTID": 22945,
          "gaz_id": 1440988,
          "gaz_name": "Fairyland Canyon",
          "gaz_featureclass": "Valley",
          "fcode": 15050,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 1820289,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.12562151204347,
              37.633414225173695
            ],
            [
              -112.13632763809117,
              37.64897312879731
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north",
        "nps-fairyland"
      ],
      "educational_value": "Ridges and eroding amphitheater",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    },
    {
      "id": "fairyland-point",
      "name": "Fairyland Point",
      "decision": "existing integrated exhibit retained; not counted as new",
      "official_record": {
        "attributes": {
          "OBJECTID": 220539,
          "gaz_id": 1440989,
          "gaz_name": "Fairyland Point",
          "gaz_featureclass": "Cliff",
          "fcode": 15022,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 467525,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.14603901111576,
              37.65026635587104
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north",
        "nps-fairyland"
      ],
      "educational_value": "Northern rim context",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    },
    {
      "id": "shakespear-point",
      "name": "Shakespear Point",
      "decision": "not selected: distinct northern cliff, but lower priority than the six source-supported subjects",
      "official_record": {
        "attributes": {
          "OBJECTID": 47205,
          "gaz_id": 1445463,
          "gaz_name": "Shakespear Point",
          "gaz_featureclass": "Cliff",
          "fcode": 15022,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 465181,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.10353780610409,
              37.68193326200514
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north"
      ],
      "educational_value": "Plateau-edge cliff context",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    },
    {
      "id": "little-henderson-canyon",
      "name": "Little Henderson Canyon",
      "decision": "not selected: broad valley would require a separate bounded coverage and editorial study",
      "official_record": {
        "attributes": {
          "OBJECTID": 218323,
          "gaz_id": 1442724,
          "gaz_name": "Little Henderson Canyon",
          "gaz_featureclass": "Valley",
          "fcode": 15050,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 1505433,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.11079867025501,
              37.6714818184121
            ],
            [
              -112.09877563286541,
              37.692518522587456
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north"
      ],
      "educational_value": "Drainage morphology",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    },
    {
      "id": "water-canyon",
      "name": "Water Canyon",
      "decision": "combined with Mossy Cave drainage; not counted twice",
      "official_record": {
        "attributes": {
          "OBJECTID": 239624,
          "gaz_id": 1447037,
          "gaz_name": "Water Canyon",
          "gaz_featureclass": "Valley",
          "fcode": 15050,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 1833541,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.11007598279546,
              37.66609979255927
            ],
            [
              -112.13885226156904,
              37.6672076602282
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north",
        "nps-mossy"
      ],
      "educational_value": "Watercourse and surrounding terrain",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    },
    {
      "id": "sunrise-point",
      "name": "Sunrise Point",
      "decision": "existing regional/Queen’s Garden context retained; no duplicate northern exhibit",
      "official_record": {
        "attributes": {
          "OBJECTID": 205877,
          "gaz_id": 1446254,
          "gaz_name": "Sunrise Point",
          "gaz_featureclass": "Cliff",
          "fcode": 15022,
          "state_alpha": "UT",
          "county_name": "Garfield",
          "objectid_1": 446820,
          "isunknowncoords": 2
        },
        "geometry": {
          "points": [
            [
              -112.16326161235423,
              37.628599651723135
            ]
          ]
        }
      },
      "source_ids": [
        "gnis-north"
      ],
      "educational_value": "Rim-to-amphitheater comparison",
      "density_returns_per_m2": null,
      "returns_in_crop": null,
      "geometry": "Regional 2018 EPT source; no new bounded crop acquired in this lane",
      "terrestrial_scan": "No verified ground package obtained in this audit",
      "photography": "Regional NAIP source exists; no new crop or third-party photo copied for this candidate",
      "rights": "USGS/USDA dataset rights recorded; no candidate photograph license inferred",
      "limits": "Regional source availability is not a measured density or a completed exhibit"
    }
  ]
}