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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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  "osm_snapshot": "2026-08-10T20:21:40Z",
  "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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  "notes": "Rhiw Brialli / Primrose Hill, Llanbadarn Fawr \u2014 Peter's local knowledge. Bilingual OSM naming; slug pinned to distinguish from the other Welsh Primrose Hills. EXTENDED 2026-08-21 per Peter: the climb continues past the 12% face all the way up to the Waunfawr Road junction (3 upper ways added; was 285 m, stopping at the top of the steep face).",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 }
}