- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°56'8"N 5°53'24"W
- Eastings/Northings: 163440, 789448
- OS Grid: NM634894
- Mapcode Local: GBR CBVD.0SY
- Mapcode Global: WGZBJ.HXCW
Location and coordinates are for the approximate centre of An Cuilean within this administrative area.
Geographic features and populated places may cross administrative borders.