- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 50°10'12"N 5°17'24"W
- Eastings/Northings: 165148, 35173
- OS Grid: SW651351
- Mapcode Local: GBR FX97.CLF
- Mapcode Global: VH12Q.8Z4K
Location and coordinates are for the approximate centre of Cargenwen Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.