- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 54°25'34"N 2°26'26"W
- Eastings/Northings: 371500, 503500
- OS Grid: NY715035
- Mapcode Local: GBR CKD8.C4
- Mapcode Global: WH93S.G0YP
Location and coordinates are for the approximate centre of Greenside Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.