- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 58°31'13"N 4°19'41"W
- Eastings/Northings: 264500, 961500
- OS Grid: NC645615
- Mapcode Local: GBR H6P6.G6G
- Mapcode Global: WH388.H36F
Location and coordinates are for the approximate centre of Alltan Dearg within this administrative area.
Geographic features and populated places may cross administrative borders.