- Category: Geographic Feature
- Type: Valley
- Latitude/Longitude: 57°19'8"N 5°39'55"W
- Eastings/Northings: 179395, 831315
- OS Grid: NG793313
- Mapcode Local: GBR D9DC.V06
- Mapcode Global: WH0B0.Y9BL
Location and coordinates are for the approximate centre of Gleann Casail within this administrative area.
Geographic features and populated places may cross administrative borders.