- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°32'39"N 6°46'34"W
- Eastings/Northings: 106547, 749348
- OS Grid: NM065493
- Mapcode Local: GBR 9CNF.31Z
- Mapcode Global: WGX9R.WSG0
Location and coordinates are for the approximate centre of Greasamull within this administrative area.
Geographic features and populated places may cross administrative borders.