It is about 3 miles (5 kilometres) long and has its source at the head of Cwm Nantcol below Rhinog Fawr and Y Llethr. It flows north-westwards from its source and joins the Afon Artro at Pentre Gwynfryn.
|This Gwynedd location article is a stub. You can help Wikipedia by expanding it.|
|This article related to a river in Wales is a stub. You can help Wikipedia by expanding it.|