The River Tawe (Afon Tawe in Welsh) is a river in South Wales. It flows in a principally south-westerly direction for some 48 km from its source below Moel Feity in the Old Red Sandstone hills of the western Brecon Beacons to the Bristol Channel at Swansea. Its only large tributary is the Clydach River. The Tawe passes through a number of towns and villages including Ystradgynlais, Ystalyfera, Pontardawe, and Clydach and meets the sea at Swansea Bay below Swansea. The Tawe valley is more commonly known as the Swansea Valley.
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