- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 57°3'32"N 5°30'11"W
- Eastings/Northings: 187672, 801879
- OS Grid: NG876018
- Mapcode Local: GBR DBS2.40D
- Mapcode Global: WH0C8.FTNY
Location and coordinates are for the approximate centre of Gleann Unndalain within this administrative area.
Geographic features and populated places may cross administrative borders.