- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°23'4"N 3°14'54"W
- Eastings/Northings: 319026, 499494
- OS Grid: SD190994
- Mapcode Local: GBR 5KRR.J1
- Mapcode Global: WH71B.22F3
Location and coordinates are for the approximate centre of Lower Birker Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.