- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°24'42"N 2°13'47"W
- Eastings/Northings: 385175, 501845
- OS Grid: NY851018
- Mapcode Local: GBR DKWF.08
- Mapcode Global: WHB50.QC9P
Location and coordinates are for the approximate centre of Birkdale Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.