- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°50'51"N 4°29'28"W
- Eastings/Northings: 228500, 219500
- OS Grid: SN285195
- Mapcode Local: GBR D6.TYCN
- Mapcode Global: VH3LD.3TJF
Location and coordinates are for the approximate centre of Afon Dewi Fawr within this administrative area.
Geographic features and populated places may cross administrative borders.