- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°11'29"N 7°3'7"W
- Eastings/Northings: 103236, 933645
- OS Grid: NB032336
- Mapcode Local: GBR 87Z2.GP9
- Mapcode Global: WGW0K.NC2R
Location and coordinates are for the approximate centre of Grà Sgeir Mhòr within this administrative area.
Geographic features and populated places may cross administrative borders.