- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°23'51"N 7°15'47"W
- Eastings/Northings: 83966, 846392
- OS Grid: NF839463
- Mapcode Local: GBR 89G5.7ZL
- Mapcode Global: WGW4B.DBK6
Location and coordinates are for the approximate centre of Eilean Greannach within this administrative area.
Geographic features and populated places may cross administrative borders.