- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 56°42'13"N 4°46'57"W
- Eastings/Northings: 229748, 760351
- OS Grid: NN297603
- Mapcode Local: GBR GCK0.42V
- Mapcode Global: WH2HM.HRTR
Location and coordinates are for the approximate centre of Blackwater Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.