- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 51°51'45"N 4°45'39"W
- Eastings/Northings: 209981, 221823
- OS Grid: SN099218
- Mapcode Local: GBR CV.SXBP
- Mapcode Global: VH2NS.FFCZ
Location and coordinates are for the approximate centre of Cwm-Barau within this administrative area.
Geographic features and populated places may cross administrative borders.