- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 50°20'27"N 3°38'8"W
- Eastings/Northings: 283705, 50286
- OS Grid: SX837502
- Mapcode Local: GBR QQ.D1LP
- Mapcode Global: FRA 3884.HF9
Location and coordinates are for the approximate centre of Ash Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.