- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°35'2"N 3°37'30"W
- Eastings/Northings: 287500, 188500
- OS Grid: SS875885
- Mapcode Local: GBR HB.CGVH
- Mapcode Global: VH5H4.3FXZ
Location and coordinates are for the approximate centre of Llynfi River within this administrative area.
Geographic features and populated places may cross administrative borders.