Afon Twrch, Carmarthenshire
Coordinates: 52°02′45″N 3°57′45″W / 52.0459°N 3.9624°W
The Afon Twrch is a short river in Carmarthenshire, West Wales. It joins the River Cothi (itself a left-bank tributary of the River Towy) at the village of Pumsaint, near to which are the Roman gold mines of Dolaucothi.
...
Wikipedia