- Category: Water Feature
- Type: Island
- Latitude/Longitude: 54°14'45"N 0°21'8"W
- Eastings/Northings: 507461, 484616
- OS Grid: TA074846
- Mapcode Local: GBR TMZB.HP
- Mapcode Global: WHGC7.KJFS
Location and coordinates are for the approximate centre of Calf Allen Rocks within this administrative area.
Geographic features and populated places may cross administrative borders.