- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°51'32"N 5°8'43"W
- Eastings/Northings: 183500, 222500
- OS Grid: SM835225
- Mapcode Local: GBR CB.T4CB
- Mapcode Global: VH1R3.RJNR
Location and coordinates are for the approximate centre of Cwm-bach within this administrative area.
Geographic features and populated places may cross administrative borders.