- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 54°35'51"N 2°6'7"W
- Eastings/Northings: 393500, 522500
- OS Grid: NY935225
- Mapcode Local: GBR FHR8.PN
- Mapcode Global: WHB43.PP6R
Location and coordinates are for the approximate centre of Grassholme Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.