- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 54°27'20"N 3°19'13"W
- Eastings/Northings: 314500, 507500
- OS Grid: NY145075
- Mapcode Local: GBR 5J7X.YJ
- Mapcode Global: WH70W.Z82K
Location and coordinates are for the approximate centre of Greendale Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.