- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°13'24"N 6°53'38"W
- Eastings/Northings: 112772, 936540
- OS Grid: NB127365
- Mapcode Local: GBR 96CZ.WK3
- Mapcode Global: WGX1L.2KDK
Location and coordinates are for the approximate centre of Sgeir Dhubh Mhòr within this administrative area.
Geographic features and populated places may cross administrative borders.