- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°14'37"N 2°39'29"W
- Eastings/Northings: 357198, 483322
- OS Grid: SD571833
- Mapcode Local: GBR 9MWC.8G
- Mapcode Global: WH94G.4LDH
Location and coordinates are for the approximate centre of Tarnhouse Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.