- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°31'0"N 5°21'40"W
- Eastings/Northings: 193305, 741152
- OS Grid: NM933411
- Mapcode Local: GBR FC4H.GYM
- Mapcode Global: WH1H5.MG5F
Location and coordinates are for the approximate centre of Sgeir Dhubh within this administrative area.
Geographic features and populated places may cross administrative borders.