- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 51°40'39"N 3°58'32"W
- Eastings/Northings: 263500, 199500
- OS Grid: SS635995
- Mapcode Local: GBR GX.Q9G1
- Mapcode Global: VH4K3.13M8
Location and coordinates are for the approximate centre of Afon Llan within this administrative area.
Geographic features and populated places may cross administrative borders.