- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°23'40"N 1°35'35"W
- Eastings/Northings: 425870, 611251
- OS Grid: NU258112
- Mapcode Local: GBR K692.W1
- Mapcode Global: WHC1M.HNLW
Location and coordinates are for the approximate centre of Marden Rocks within this administrative area.
Geographic features and populated places may cross administrative borders.