- Category: Water Feature
- Type: Island
- Latitude/Longitude: 53°12'57"N 4°11'8"W
- Eastings/Northings: 254157, 371001
- OS Grid: SH541710
- Mapcode Local: GBR 5M.1HPZ
- Mapcode Global: WH546.PF1D
Location and coordinates are for the approximate centre of Britannia Rock within this administrative area.
Geographic features and populated places may cross administrative borders.