- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°10'40"N 5°31'30"W
- Eastings/Northings: 181297, 703946
- OS Grid: NM812039
- Mapcode Local: GBR DDQD.5Y5
- Mapcode Global: WH0HJ.3Z6D
Location and coordinates are for the approximate centre of Sgeir Dhubh within this administrative area.
Geographic features and populated places may cross administrative borders.