- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 53°9'16"N 3°24'30"W
- Eastings/Northings: 305907, 362855
- OS Grid: SJ059628
- Mapcode Local: GBR 6N.56HT
- Mapcode Global: WH771.MZ22
Location and coordinates are for the approximate centre of Ty-mawr Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.