- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 52°56'45"N 4°8'20"W
- Eastings/Northings: 256382, 340887
- OS Grid: SH563408
- Mapcode Local: GBR 5P.LH2G
- Mapcode Global: WH55L.D6BS
Location and coordinates are for the approximate centre of Cwm Bâch within this administrative area.
Geographic features and populated places may cross administrative borders.