- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°33'38"N 7°25'4"W
- Eastings/Northings: 76129, 865240
- OS Grid: NF761652
- Mapcode Local: GBR 882R.32C
- Mapcode Global: WGV2C.07W4
Location and coordinates are for the approximate centre of Bior-eilean within this administrative area.
Geographic features and populated places may cross administrative borders.