- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°21'33"N 6°3'47"W
- Eastings/Northings: 149109, 725964
- OS Grid: NM491259
- Mapcode Local: GBR CCDX.CHT
- Mapcode Global: WGZFB.TFW7
Location and coordinates are for the approximate centre of Sgeir Mhòr within this administrative area.
Geographic features and populated places may cross administrative borders.