, Llanberis, Gwynedd, Wales,

Street View of Afon Rhythallt River | Map of Afon Rhythallt River location

The River Rhythallt (Afon Rhythallt) is a river in Gwynedd North Wales. It is said that the source is the northern shore of Llyn Padarn, although www.streetmap.co.uk shows that the river first flows from Llyn Peris through to the southern shore of Llyn Padarn. The river changes its name to the Seiont after passing below Pont Rhythallt Bridge in Llanrug, from where it flows to the sea at Caernarfon.....