- Category: Water Feature
- Type: Island
- Latitude/Longitude: 58°8'14"N 7°7'48"W
- Eastings/Northings: 98187, 927973
- OS Grid: NA981279
- Mapcode Local: GBR 87S6.WBZ
- Mapcode Global: WGW0Q.FQWQ
Location and coordinates are for the approximate centre of Eirais nan Uan within this administrative area.
Geographic features and populated places may cross administrative borders.