- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°31'9"N 3°7'24"W
- Eastings/Northings: 327378, 514349
- OS Grid: NY273143
- Mapcode Local: GBR 6JM5.LR
- Mapcode Global: WH70L.ZNTW
Location and coordinates are for the approximate centre of Dock Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.