- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°30'25"N 3°50'8"W
- Eastings/Northings: 275500, 291500
- OS Grid: SN755915
- Mapcode Local: GBR 93.H07D
- Mapcode Global: VH4F3.G7JV
Location and coordinates are for the approximate centre of Afon Llechwedd-mawr within this administrative area.
Geographic features and populated places may cross administrative borders.