- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°39'48"N 7°2'27"W
- Eastings/Northings: 99508, 874924
- OS Grid: NF995749
- Mapcode Local: GBR 980G.MSF
- Mapcode Global: WGW32.TMDY
Location and coordinates are for the approximate centre of Greanem within this administrative area.
Geographic features and populated places may cross administrative borders.