- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°3'16"N 6°30'20"W
- Eastings/Northings: 126901, 804960
- OS Grid: NG269049
- Mapcode Local: GBR BBB2.DXR
- Mapcode Global: WGY8J.1YCB
Location and coordinates are for the approximate centre of Iolann an Eilein within this administrative area.
Geographic features and populated places may cross administrative borders.