- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°1'30"N 7°22'58"W
- Eastings/Northings: 73512, 805562
- OS Grid: NF735055
- Mapcode Local: GBR 8B54.TCW
- Mapcode Global: WGV4W.KPL8
Location and coordinates are for the approximate centre of Grianamul within this administrative area.
Geographic features and populated places may cross administrative borders.