- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 55°49'6"N 6°11'23"W
- Eastings/Northings: 137646, 666290
- OS Grid: NR376662
- Mapcode Local: GBR CF3B.FL5
- Mapcode Global: WGYGV.W0NW
Location and coordinates are for the approximate centre of Gleann Mhàrtuin within this administrative area.
Geographic features and populated places may cross administrative borders.