- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°41'24"N 2°58'40"W
- Eastings/Northings: 332500, 199500
- OS Grid: ST325995
- Mapcode Local: GBR J6.4PNK
- Mapcode Global: VH79T.BSK5
Location and coordinates are for the approximate centre of Llandegfedd Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.