- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 56°41'43"N 5°1'2"W
- Eastings/Northings: 215331, 760044
- OS Grid: NN153600
- Mapcode Local: GBR FCZ0.Y6H
- Mapcode Global: WH1GC.WZX1
Location and coordinates are for the approximate centre of Gleann A' Chaolais within this administrative area.
Geographic features and populated places may cross administrative borders.