- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 56°27'59"N 4°35'25"W
- Eastings/Northings: 240500, 733500
- OS Grid: NN405335
- Mapcode Local: GBR HC1M.G0N
- Mapcode Global: WH3L0.GQ8J
Location and coordinates are for the approximate centre of Allt Challum within this administrative area.
Geographic features and populated places may cross administrative borders.