- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°27'46"N 6°14'39"W
- Eastings/Northings: 138650, 738147
- OS Grid: NM386381
- Mapcode Local: GBR BCZM.SQ4
- Mapcode Global: WGYCK.1TSF
Location and coordinates are for the approximate centre of Sgeir Dhubh within this administrative area.
Geographic features and populated places may cross administrative borders.