- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°15'41"N 6°52'54"W
- Eastings/Northings: 113800, 940703
- OS Grid: NB138407
- Mapcode Local: GBR 96DW.NPN
- Mapcode Global: WGX1D.8L7Y
Location and coordinates are for the approximate centre of Sgeir Chuinnais within this administrative area.
Geographic features and populated places may cross administrative borders.