- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 54°27'43"N 3°0'20"W
- Eastings/Northings: 334911, 507888
- OS Grid: NY349078
- Mapcode Local: GBR 7JGV.26
- Mapcode Global: WH825.S3XJ
Location and coordinates are for the approximate centre of Alcock Tarn within this administrative area.
Geographic features and populated places may cross administrative borders.