- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°59'0"N 3°50'27"W
- Eastings/Northings: 276500, 344500
- OS Grid: SH765445
- Mapcode Local: GBR 62.J3FK
- Mapcode Global: WH55J.Z83K
Location and coordinates are for the approximate centre of Afon Ddu within this administrative area.
Geographic features and populated places may cross administrative borders.