- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°29'21"N 3°38'42"W
- Eastings/Northings: 285876, 177973
- OS Grid: SS858779
- Mapcode Local: GBR H9.KHTC
- Mapcode Global: VH5HH.RTTR
Location and coordinates are for the approximate centre of Cwm y Befos within this administrative area.
Geographic features and populated places may cross administrative borders.