- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°29'37"N 6°48'19"W
- Eastings/Northings: 104348, 743874
- OS Grid: NM043438
- Mapcode Local: GBR 9CLK.7L0
- Mapcode Global: WGXB4.F1HL
Location and coordinates are for the approximate centre of Sgeir Dhubh within this administrative area.
Geographic features and populated places may cross administrative borders.