- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°6'18"N 3°28'46"W
- Eastings/Northings: 301045, 357454
- OS Grid: SJ010574
- Mapcode Local: GBR 6K.8F7Q
- Mapcode Global: WH668.J68W
Location and coordinates are for the approximate centre of Clywedog Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.