- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°57'37"N 3°42'41"W
- Eastings/Northings: 282500, 230500
- OS Grid: SN825305
- Mapcode Local: GBR Y8.LL0F
- Mapcode Global: VH5F4.MZ7F
Location and coordinates are for the approximate centre of Waun Ddu within this administrative area.
Geographic features and populated places may cross administrative borders.