- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°42'55"N 5°41'25"W
- Eastings/Northings: 180300, 875508
- OS Grid: NG803755
- Mapcode Local: GBR D8BB.8BY
- Mapcode Global: WH082.KBJK
Location and coordinates are for the approximate centre of Sgeir Dhubh within this administrative area.
Geographic features and populated places may cross administrative borders.