{
  "schema": 1,
  "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.",
      "rechecked_at": "2026-10-02",
      "verification": "Primary product/rights page read in this lane; exact UGRC CC BY 4.0 terms preserved from accepted item metadata."
    },
    {
      "id": "nps-inspiration",
      "url": "https://www.nps.gov/places/000/inspiration-point-viewpoint.htm",
      "title": "Inspiration Point",
      "publisher": "National Park Service",
      "date": null,
      "retrieved_at": "2026-10-02",
      "license": "Paraphrased facts and link only; no photograph copied",
      "supports": "Multiple rim overlooks; Silent City rows south of Sunset; nearby upper White and lower Pink Member context. No member contacts are mapped by this model."
    },
    {
      "id": "nps-bryce",
      "url": "https://www.nps.gov/places/000/bryce-point.htm",
      "title": "Bryce Point",
      "publisher": "National Park Service",
      "date": "2024-10-10",
      "retrieved_at": "2026-10-02",
      "license": "Paraphrased facts and link only; photograph credited NPS / Peter Densmore is not copied",
      "supports": "Southern viewpoint looking north; Grottos and Wall of Windows context; hidden interiors not resolved by airborne topography."
    },
    {
      "id": "nps-fairyland",
      "url": "https://www.nps.gov/places/000/fairyland-point.htm",
      "title": "Fairyland Point",
      "publisher": "National Park Service",
      "date": "2024-10-10",
      "retrieved_at": "2026-10-02",
      "license": "Paraphrased facts and link only; photograph credited NPS / Peter Densmore is not copied",
      "supports": "Northern viewpoint, Fairyland Canyon and neighboring Boat Mesa/Campbell Canyon; differing erosional history, without numeric age or rate."
    },
    {
      "id": "nps-rainbow",
      "url": "https://www.nps.gov/places/000/rainbow-point.htm",
      "title": "Rainbow Point",
      "publisher": "National Park Service",
      "date": "2026-08-15",
      "retrieved_at": "2026-10-02",
      "license": "Paraphrased facts and link only; photograph credited NPS / Peter Densmore is not copied",
      "supports": "One of the highest viewpoints, northward view, undercut southern plateau cliffs; local crop does not show the entire distant view."
    },
    {
      "id": "utah-trails",
      "title": "Utah Trails and Pathways",
      "publisher": "Utah Geospatial Resource Center (UGRC), WFRC",
      "url": "https://gis.utah.gov/products/sgid/recreation/trails-pathways/",
      "item": "3080c0a2859a4d23a279e17e17c703c8",
      "rights": "CC BY 4.0",
      "license": "https://creativecommons.org/licenses/by/4.0/",
      "evidence": "utah-trails-item.json",
      "updated": "Item modified 2026-10-01; description says 2026-08-05; product page says 2026-07-15",
      "limits": "State compilation including licensed Orbital View data and NPS revisions. Selected records still identify OrbitalView as their source. No source survey date, intended engineering scale or positional accuracy is supplied for these segments. General overview only.",
      "evidence_sha256": "92b5bfc5b0c34cd05a4afd3507acd4515716228dd8fe936ffd907d431fbbd576",
      "retrieved_at": "2026-10-02T08:43:23.984065+00:00",
      "rechecked_at": "2026-10-02",
      "verification": "Primary product/rights page read in this lane; exact UGRC CC BY 4.0 terms preserved from accepted item metadata."
    },
    {
      "id": "nps-trails",
      "title": "NPS public trail centerlines",
      "publisher": "National Park Service",
      "url": "https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_Trails/FeatureServer/0",
      "rights": "U.S. federal public data; retain NPS disclaimer",
      "evidence": "nps-trails-layer.json",
      "updated": "Selected BRCA records edited 2021; acquisition dates often unknown",
      "limits": "Partial network in the retrieved BRCA extract. Three social/non-public-note records excluded. Source accuracy is Unknown; publication in this service does not establish current opening.",
      "evidence_sha256": "a298432c8c519d1c38cd8aa41df705b9f08d8024119cbf21ba27b247ed87bd8d",
      "retrieved_at": "2026-10-02T08:39:43.452923+00:00"
    },
    {
      "id": "nps-pois",
      "title": "NPS public points of interest",
      "publisher": "National Park Service",
      "url": "https://mapservices.nps.gov/arcgis/rest/services/NationalDatasets/NPS_Public_POIs/FeatureServer/0",
      "rights": "U.S. federal public data; retain NPS disclaimer",
      "evidence": "nps-pois.geojson",
      "updated": "Record-specific dates retained in route packets",
      "limits": "Named viewpoints and trailheads are separate from terrain, formations and arrival points. Points may be digitized; projected route positions are identified as such.",
      "evidence_sha256": "aa9d37dd6a6a5df9bf2b1bd9830a864eb93a496865f670913caff00cd3fbf231",
      "retrieved_at": "2026-10-02T08:39:44.580372+00:00"
    },
    {
      "id": "nps-hiking-map",
      "title": "NPS Bryce Canyon Hikes map configuration",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/maps/builder/configs/19f442bd-a721-47e7-98c8-bf7448c43e70.json",
      "rights": "Federal public mapping configuration; no basemap assets reused",
      "evidence": "nps-hiking-map-config.json",
      "limits": "Identifies Navajo sides by geometry UUID: 634B3CAF is Wall Street, 7ABA9613 is Two Bridges. The generic trail alternate-name field alone does not distinguish them.",
      "evidence_sha256": "570581447f7ce445764054b935bb5927428dc07090bbeb0010e4c2338cc6bf64",
      "retrieved_at": "2026-10-02T08:41:03.990576+00:00"
    },
    {
      "id": "usgs-dem",
      "title": "USGS 3DEP Bare Earth DEM Dynamic service",
      "publisher": "U.S. Geological Survey",
      "url": "https://elevation.nationalmap.gov/arcgis/rest/services/3DEPElevation/ImageServer",
      "rights": "Public domain",
      "evidence": "usgs-dem-receipt.json",
      "updated": "Service includes data published through 2026-08-24",
      "limits": "10 m bilinear export, NAD83 / UTM 12N; NAVD88 metres under the CONUS 3DEP convention. Mixed source resolutions and dates. Not surveyed trail tread. Profile and ascent errors can be large beside cliffs, bridges or tunnels.",
      "evidence_sha256": "f65dc0388e00850e9d0f1ae7122ad5cad0ab42374e284c17b3604c5393f26da5",
      "retrieved_at": "2026-10-02"
    },
    {
      "id": "nps-queen-s-garden-trail",
      "title": "Queen S Garden Trail",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/thingstodo/queen-s-garden-trail.htm",
      "rights": "Federal text; no photographs reused",
      "evidence": "queen-s-garden-trail.html",
      "updated": "2026-08-15",
      "evidence_sha256": "7f6034faa51cd2ed908eb623d5320e9c0ee73a119fcef8f58f773c6b9243d5ce",
      "retrieved_at": "2026-10-02T08:40:27.781294+00:00"
    },
    {
      "id": "nps-fairyland-loop",
      "title": "Fairyland Loop",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/thingstodo/fairyland-loop.htm",
      "rights": "Federal text; no photographs reused",
      "evidence": "fairyland-loop.html",
      "updated": "2026-08-15",
      "evidence_sha256": "f7d621fe3beaab71b9c6c3ee745815c6f3665208dd51af8123fbd02ab271a0fa",
      "retrieved_at": "2026-10-02T08:40:27.622403+00:00"
    },
    {
      "id": "nps-navajo-loop-trail",
      "title": "Navajo Loop Trail",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/thingstodo/navajo-loop-trail.htm",
      "rights": "Federal text; no photographs reused",
      "evidence": "navajo-loop-trail.html",
      "updated": "2026-08-15",
      "evidence_sha256": "c19c597efadb20a5c9cbf5f1d7c173bd9be7ba0c6121253cbee0edbe45a6734a",
      "retrieved_at": "2026-10-02T08:40:27.857812+00:00"
    },
    {
      "id": "nps-mossy-cave-trail",
      "title": "Mossy Cave Trail",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/thingstodo/mossy-cave-trail.htm",
      "rights": "Federal text; no photographs reused",
      "evidence": "mossy-cave-trail.html",
      "updated": "2024-10-10",
      "evidence_sha256": "6adb0283da0723c2b24bf85102bacd21d4d83435f8a511ca773b8a7f2bd47576",
      "retrieved_at": "2026-10-02T08:40:28.193425+00:00"
    },
    {
      "id": "nps-hoodoos",
      "title": "Hoodoos",
      "publisher": "National Park Service, Bryce Canyon National Park",
      "url": "https://www.nps.gov/brca/learn/nature/hoodoos.htm",
      "published_or_updated": "2021-09-04",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked; no text or illustrations reproduced. Page contains third-party imagery, which is not reused.",
      "supports": "Weathering/erosion distinction; water and frost; depositional setting; variable resistance.",
      "baseline_id": "S1",
      "rechecked_at": "2026-10-02",
      "verification": "Primary NPS page read in this lane; facts paraphrased, media not copied."
    },
    {
      "id": "nps-walls",
      "title": "Wall and Narrows",
      "publisher": "National Park Service, Bryce Canyon National Park",
      "url": "https://www.nps.gov/brca/learn/nature/wallandnarrows.htm",
      "published_or_updated": "2021-09-04",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked; no media reused.",
      "supports": "Fins bounded by fractures; runoff removes weathered fragments; differential erosion.",
      "baseline_id": "S2",
      "rechecked_at": "2026-10-02",
      "verification": "Primary NPS page read in this lane; facts paraphrased, media not copied."
    },
    {
      "id": "nps-arches",
      "title": "Arches",
      "publisher": "National Park Service, Bryce Canyon National Park",
      "url": "https://www.nps.gov/brca/learn/nature/arches.htm",
      "published_or_updated": "2015-02-24",
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked; no media reused.",
      "supports": "Windows in fins; gravity; qualified bridge/arch terminology; Natural Bridge as an example.",
      "baseline_id": "S3",
      "rechecked_at": "2026-10-02",
      "verification": "Primary NPS page read in this lane; facts paraphrased, media not copied."
    },
    {
      "id": "nps-staircase",
      "title": "Grand Staircase",
      "publisher": "National Park Service, Bryce Canyon National Park",
      "url": "https://www.nps.gov/brca/learn/nature/grandstaircase.htm",
      "published_or_updated": null,
      "retrieved_at": "2026-10-02",
      "license": "Facts paraphrased and linked; no diagram copied.",
      "supports": "Regional sequence across Bryce, Zion and Grand Canyon; broad setting only.",
      "baseline_id": "S11",
      "rechecked_at": "2026-10-02",
      "verification": "Primary NPS page read in this lane; facts paraphrased, media not copied."
    }
  ],
  "media": "No photographs, agency marks, satellite imagery or generated raster media used."
}