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 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
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   "data/cache/wales/dtm_1m/wg_del_22_267274_20220114dtm.tif",
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  "calculated_at": "2026-08-13T02:09:00+00:00",
  "road_source": "OpenStreetMap",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_ids": [
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  "osm_versions": {
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  "osm_timestamps": {
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  "osm_retrieved_at": "2026-08-13T02:08:57+00:00",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
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  "climb_origin": "discovered",
  "notes": "Top of Rheidol sweep by max 100 m (22.9%); no incline tag, on no list."
 },
 "confidence": "B"
}