{
  "schema": 1,
  "checked_at": "2026-10-02",
  "sources": [
    {
      "id": "usgs-lidar",
      "url": "https://registry.opendata.aws/usgs-lidar/",
      "title": "USGS 3DEP LiDAR Point Clouds",
      "publisher": "USGS data; public Entwine organization maintained by Hobu",
      "date": "2018 acquisition; LAS published 2019",
      "retrieved_at": "2026-10-02",
      "license": "US Government Public Domain",
      "supports": "Lossless public EPT copy, independent measured returns, public-domain data rights. Only the anonymous usgs-lidar-public bucket was used; no requester-pays bucket."
    },
    {
      "id": "usgs-rights",
      "url": "https://www.usgs.gov/faqs/what-are-terms-uselicensing-map-services-and-data-national-map",
      "title": "Terms of Use/Licensing for The National Map",
      "publisher": "US Geological Survey",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "Public-domain data; attribution requested",
      "supports": "USGS elevation reuse and originating-agency acknowledgment."
    },
    {
      "id": "usgs-project-dates",
      "url": "https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/LPC/Projects/USGS_LPC_UT_Southern_QL1_2018_LAS_2019/metadata/USGS_LPC_UT_Southern_QL1_2018_12SUG9562_LAS_2019_meta.xml",
      "title": "USGS Lidar Point Cloud UT Southern QL1 2018 12SUG9562 LAS 2019 metadata",
      "publisher": "US Geological Survey",
      "date": "2019-06-03",
      "retrieved_at": "2026-10-02",
      "license": "No access restrictions; USGS disclaimer and change disclosure apply",
      "supports": "Project acquisition interval 2018-04-27 to 2018-07-29, publication date, source limitations. The generic XML horizontal reference is malformed (UTM zone 30); native LAS WKT and EPT metadata control coordinate interpretation instead."
    },
    {
      "id": "usda-naip",
      "url": "https://apps.geo.fpac.usda.gov/geo-imagery/rest/services/naip/conus_naip/ImageServer",
      "title": "USDA conterminous US NAIP imagery service",
      "publisher": "USDA FPAC / Farm Service Agency",
      "date": "2024 Utah acquisition, exact flight dates per crop",
      "retrieved_at": "2026-10-02",
      "license": "US Government Public Domain, NAIP dataset record",
      "supports": "Locked primary-raster RGB crops, image identities and acquisition dates. Per-model imagery.json retains exact requests, extents and hashes."
    },
    {
      "id": "naip-rights",
      "url": "https://catalog.data.gov/dataset/national-agriculture-imagery-program-naip-imagery",
      "title": "National Agriculture Imagery Program (NAIP) Imagery",
      "publisher": "US Department of Agriculture, data.gov catalog",
      "date": "2025-07-09",
      "retrieved_at": "2026-10-02",
      "license": "US Government Public Domain; record links the USA.gov public-domain label",
      "supports": "Dataset-specific rights, aerial acquisition and orthorectification. This does not grant rights to Utah Hexagon or Google licensed imagery, neither of which is used."
    },
    {
      "id": "utah-naip",
      "url": "https://gis.utah.gov/products/sgid/aerial-photography/naip/",
      "title": "National Agriculture Imagery Program (NAIP)",
      "publisher": "Utah Geospatial Resource Center",
      "date": "2024 data collection page",
      "retrieved_at": "2026-10-02",
      "license": "Reference only; no UGRC photograph copied",
      "supports": "Utah 2018-and-later NAIP is 0.6 m imagery with a stated horizontal accuracy of +/-4 m; source service and flight-date fields. Sampling a mesh more finely does not improve image resolution."
    },
    {
      "id": "nps-hat-shop",
      "title": "Hat Shop",
      "url": "https://www.nps.gov/thingstodo/hat-shop.htm",
      "publisher": "National Park Service",
      "date": "2024-10-10",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Balanced-rock hoodoo identity and relationship to Bryce Point; no operational trail metrics reused."
    },
    {
      "id": "nps-swamp",
      "title": "Swamp Canyon",
      "url": "https://www.nps.gov/places/000/swamp-canyon.htm",
      "publisher": "National Park Service",
      "date": "2026-08-15",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Southern landscape transition, overlook identity and broader canyon context; no wetland or species mapping."
    },
    {
      "id": "nps-farview",
      "title": "Farview Point",
      "url": "https://www.nps.gov/places/000/farview-point.htm",
      "publisher": "National Park Service",
      "date": "2021-02-01",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Piracy north of Farview and local plateau context; distant panorama is outside the crop."
    },
    {
      "id": "nps-piracy",
      "title": "Piracy Point",
      "url": "https://www.nps.gov/places/000/piracy-point.htm",
      "publisher": "National Park Service",
      "date": "2021-01-28",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Sheep Creek and Willis Creek drainage interpretation; no capture date or calibrated watershed simulation."
    },
    {
      "id": "nps-ponderosa",
      "title": "Ponderosa Canyon",
      "url": "https://www.nps.gov/places/000/ponderosa-canyon.htm",
      "publisher": "National Park Service",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Forest zones in relation to elevation and named overlook. Neither species nor geological contacts inferred from color."
    },
    {
      "id": "nps-black-birch",
      "title": "Black Birch Canyon",
      "url": "https://www.nps.gov/places/000/black-birch-canyon.htm",
      "publisher": "National Park Service",
      "date": "2024-10-10",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Overlook and southern amphitheater context; probable aspen naming confusion."
    },
    {
      "id": "nps-riggs",
      "title": "Riggs Spring Loop Trail",
      "url": "https://www.nps.gov/brca/planyourvisit/riggsspringloop.htm",
      "publisher": "National Park Service",
      "date": "2021-09-21",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Forest and slope setting; NPS-credited historical topographic map used for comparison. Published route metrics differ from newer NPS records and are not used."
    },
    {
      "id": "nps-backcountry",
      "title": "Backcountry Hiking and Camping",
      "url": "https://www.nps.gov/thingstodo/backcountry-hiking-and-camping.htm",
      "publisher": "National Park Service",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Riggs/Under-the-Rim context and source disagreement record, not current trip guidance."
    },
    {
      "id": "nps-paria",
      "title": "Paria View",
      "url": "https://www.nps.gov/places/000/paria-view.htm",
      "publisher": "National Park Service",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Candidate identity; deferred for distinct footprint priority."
    },
    {
      "id": "nps-whiteman",
      "title": "Whiteman Bench Picnic Area",
      "url": "https://www.nps.gov/places/000/whiteman-bench-picnic-area.htm",
      "publisher": "National Park Service",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked. Photograph rights recorded separately per image.",
      "supports": "Candidate identity and broad bench context; no wildfire-area calculation."
    },
    {
      "id": "gnis",
      "title": "Geographic Names \u2014 Landforms",
      "url": "https://carto.nationalmap.gov/arcgis/rest/services/geonames/MapServer/5",
      "publisher": "US Geological Survey",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "US Government Public Domain; USGS National Map terms",
      "supports": "Independent named-feature locators, including Hat Shop 1441625, Farview 1441016, Piracy 1444459 and Corral Hollow 1439972. Points do not define a feature boundary. Valley records include multiple positions, not a trail polyline."
    },
    {
      "id": "nps-pois",
      "title": "NPS Public Points of Interest",
      "url": "https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_POIs/FeatureServer/0",
      "publisher": "National Park Service",
      "date": "dataset records have individual dates",
      "retrieved_at": "2026-10-02",
      "license": "NPS public geospatial data; no endorsement; agency source and accuracy fields preserved",
      "supports": "Mapped overlook positions; Hat Shop Hoodoos Viewpoint 9513. Accuracy is unknown, scaled or >=14 m for used records. Existing travel coordinates remain unchanged; similar names with different roles are not substituted."
    },
    {
      "id": "nps-image-rights",
      "title": "NPS disclaimer: ownership",
      "url": "https://www.nps.gov/aboutus/disclaimer.htm",
      "publisher": "National Park Service",
      "date": "2025-03-05",
      "retrieved_at": "2026-10-02",
      "license": "NPS-authored works generally public domain unless otherwise indicated; third-party material excluded",
      "supports": "Five comparison images explicitly credited NPS Photo / Peter Densmore and the NPS-credited Riggs topographic map. Uncredited Hat Shop hero and separately credited Riggs photograph are excluded from redistributed comparison assets."
    }
  ],
  "credits": [
    "Map services and data available from U.S. Geological Survey, National Geospatial Program.",
    "Aerial imagery: USDA Farm Service Agency / FPAC, NAIP 2024.",
    "Mapped public overlooks: National Park Service. Comparison photographs: NPS / Peter Densmore.",
    "Three.js 0.186.1, MIT; existing local Gelasio and Inter fonts, SIL OFL."
  ],
  "reuse_limits": [
    "No claim to original U.S. Government works.",
    "NPS, USGS and USDA have not endorsed this derivative.",
    "No ground scan, hidden-surface reconstruction, navigation surface or live condition report."
  ],
  "coordinate_policy": {
    "native": "Native LAS compound WKT verified for the actual OriginIds in each crop.",
    "horizontal": "EPT EPSG:3857 to WGS84 / UTM 12N EPSG:32612; no survey-grade NAD83/WGS84 alignment claimed.",
    "vertical": "Source NAVD88 / Geoid12B metres retained unchanged; no ellipsoid-to-orthometric conversion.",
    "render": "x east, y up from recorded base, z south; vertical exaggeration 1."
  }
}