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  "road_source": "OpenStreetMap (local PBF extract)",
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  "osm_pbf_path": "data/cache/pbf/wales-2026-08-11.osm.pbf",
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  "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": "Promoted automatically from triage verdict=validated. Named from nearest OSM place node (Betws-y-coed); originally unnamed at (53.088, -3.7917). EXTENDED by graph walk: +0 segment(s) at base, +3 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting."
 },
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  "county": "Conwy - Conwy"
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   "observed_via": "osm_tag_history",
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}