- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°3'51"N 5°47'51"W
- Eastings/Northings: 169864, 803444
- OS Grid: NG698034
- Mapcode Local: GBR DB21.M5P
- Mapcode Global: WGZ9Z.XPDQ
Location and coordinates are for the approximate centre of Sgeir Dhubh within this administrative area.
Geographic features and populated places may cross administrative borders.