The Upper Clydach River runs from a poorly drained area south of Cwmgors and flows south and southeast through Cwm Gors for about 7 km to join the River Tawe at Pontardawe - 51°43′04″N 3°50′55″W / 51.71775°N 3.84873°W / 51.71775; -3.84873. Each of the rivers bearing the name 'Clydach' in South Wales is thought to derive from an earlier Celtic word 'klou' or 'kleu' together with the suffix '-ach' which is of Irish origin. The sense is of a 'strong-flowing', 'washing' or stony river.
References
- Owenn, Hywel Wyn; Morgan, Richard (2007). Dictionary of the Place-names of Wales (first ed.). Llandyssul, Ceredigion: Gomer Press. p. 90. ISBN 9781843239017.
External links
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