- Category: Water Feature
- Type: Island
- Latitude/Longitude: 50°18'9"N 3°57'27"W
- Eastings/Northings: 260691, 46577
- OS Grid: SX606465
- Mapcode Local: GBR Q5.RH6T
- Mapcode Global: FRA 28L7.J18
Location and coordinates are for the approximate centre of West Mary's Rock within this administrative area.
Geographic features and populated places may cross administrative borders.