- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 52°16'25"N 3°41'45"W
- Eastings/Northings: 284372, 265309
- OS Grid: SN843653
- Mapcode Local: GBR 98.YYD7
- Mapcode Global: VH5CS.W3CT
Location and coordinates are for the approximate centre of Cronfa Ddwr Claerwen within this administrative area.
Geographic features and populated places may cross administrative borders.