- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°9'31"N 6°18'41"W
- Eastings/Northings: 139390, 815781
- OS Grid: NG393157
- Mapcode Local: GBR B9SS.ZRZ
- Mapcode Global: WGY87.0BRD
Location and coordinates are for the approximate centre of Sgeir Mhòr within this administrative area.
Geographic features and populated places may cross administrative borders.