- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°28'17"N 1°46'19"W
- Eastings/Northings: 413778, 842382
- OS Grid: NK137423
- Mapcode Local: GBR P8ZZ.8W3
- Mapcode Global: WHBQG.RGDM
Location and coordinates are for the approximate centre of Mussel Hillocks within this administrative area.
Geographic features and populated places may cross administrative borders.