- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°26'37"N 3°9'39"W
- Eastings/Northings: 324809, 505992
- OS Grid: NY248059
- Mapcode Local: GBR 6KC1.GS
- Mapcode Global: WH70Z.FK0N
Location and coordinates are for the approximate centre of Three Tarns within this administrative area.
Geographic features and populated places may cross administrative borders.