- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°43'56"N 7°3'35"W
- Eastings/Northings: 98950, 882650
- OS Grid: NF989826
- Mapcode Local: GBR 88Y9.53B
- Mapcode Global: WGW2P.JXD6
Location and coordinates are for the approximate centre of Heisteam within this administrative area.
Geographic features and populated places may cross administrative borders.