- Category: Water Feature
- Type: Other Water Feature
- Latitude/Longitude: 52°11'8"N 3°40'34"W
- Eastings/Northings: 285500, 255500
- OS Grid: SN855555
- Mapcode Local: GBR Y9.4GR8
- Mapcode Global: VH5D6.7BC5
Location and coordinates are for the approximate centre of Afon Gwesyn within this administrative area.
Geographic features and populated places may cross administrative borders.