Cwmystwyth is a village in Ceredigion, Wales near Devil's Bridge, and Pont-rhyd-y-groes. The Ordnance Survey calculates Cwmystwyth to be the centre point of Wales. Discovery of small, oval-shaped stone tools in the area points to the fact that it has been mined for lead since the time of ancient Britons and during Roman occupation. Documentation of min…Cwmystwyth is a village in Ceredigion, Wales near Devil's Bridge, and Pont-rhyd-y-groes. The Ordnance Survey calculates Cwmystwyth to be the centre point of Wales. Discovery of small, oval-shaped stone tools in the area points to the fact that it has been mined for lead since the time of ancient Britons and during Roman occupation. Documentation of mining activities occurred during the reign of Elizabeth I. She engaged the services of two German miners, then went on to sub-let to Hugh Myddleton.