- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 53°13'3"N 4°19'49"W
- Eastings/Northings: 244500, 371500
- OS Grid: SH445715
- Mapcode Local: GBR 5F.1BJZ
- Mapcode Global: WH430.GD41
Location and coordinates are for the approximate centre of Afon Cefni within this administrative area.
Geographic features and populated places may cross administrative borders.