The River Machno (Welsh: Afon Conwy) is a river in Snowdonia, North Wales. It has its source in the slopes at the head of the Penmachno valley, and flows through the villages of Cwm Penmachno and Penmachno.It is the first major tributary of the river Conwy, which it joins south of Betws-y-coed, just past the impressive Penmachno Falls.
The old Roman bridge which spans the Afon Machno close to the now disused Penmachno Woollen Mill.
Penmachno was an important early Christian centre, evidenced by an outstanding collection of inscribed stones from the late 5th and mid 6th century AD that are to be found in the parish church of St. Tudclud. Built in 1857, it stands in the centre of the village where originally stood two churches; the other church, dedicated to St. Enclydwyn, fell into ruin after the Reformation and has entirely disappeared,
Both churches stood close to the Roman road which runs South to Tomen y Mur, one from Rhiw Bach and the other possibly from Beddau Gwyr Ardudwy, a legendary site near Bryn y Castell, Ffestiniog.
By road: Alongside B4406
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Forgotten Relics - Listed Bridges and Viaducts
