- References
{{For|the tributary of the River Aeron|Gwenffrwd, Aeron}}The Gwenffrwd is a right-bank tributary of the River Towy in northern Carmarthenshire, mid Wales. It rises to the east of Carn Nant-yr-ast and flows in a generally southeasterly direction to its confluence with the Towy, 1 mile to the northwest of the village of Rhandirmwyn. Its only significant tributary is the Nant Melyn which enters on its right-bank.[1] References 1. ^Ordnance Survey 1:25,000 scale Explorer map sheet 187 Llandovery
{{coord missing|Carmarthenshire}}{{Wales-river-stub}} 1 : Rivers of Carmarthenshire |