- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°53'7"N 3°47'32"W
- Eastings/Northings: 279500, 333500
- OS Grid: SH795335
- Mapcode Local: GBR 64.Q995
- Mapcode Global: WH672.QQCV
Location and coordinates are for the approximate centre of Nant Ddu within this administrative area.
Geographic features and populated places may cross administrative borders.