- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°13'13"N 6°52'56"W
- Eastings/Northings: 113425, 936142
- OS Grid: NB134361
- Mapcode Local: GBR 97D0.2CH
- Mapcode Global: WGX1L.7MWY
Location and coordinates are for the approximate centre of Sgeir Dubhaig within this administrative area.
Geographic features and populated places may cross administrative borders.