- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°45'56"N 3°18'46"W
- Eastings/Northings: 311500, 319500
- OS Grid: SJ115195
- Mapcode Local: GBR 6R.YZNW
- Mapcode Global: WH791.2RM0
Location and coordinates are for the approximate centre of Nant Alan within this administrative area.
Geographic features and populated places may cross administrative borders.