- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°35'36"N 2°6'9"W
- Eastings/Northings: 393465, 522050
- OS Grid: NY934220
- Mapcode Local: GBR FHRB.K3
- Mapcode Global: WHB43.NSXV
Location and coordinates are for the approximate centre of Grassholme Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.