- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 57°11'20"N 5°33'5"W
- Eastings/Northings: 185500, 816500
- OS Grid: NG855165
- Mapcode Local: GBR D9NQ.KXS
- Mapcode Global: WH0BN.PKNQ
Location and coordinates are for the approximate centre of Allt M within this administrative area.
Geographic features and populated places may cross administrative borders.