Pont Aberglaslyn

Pont Aberglaslyn is a stone arch bridge over the Afon Glaslyn and the surrounding hamlet, located near Beddgelert and Nantmor in Gwynedd, north-west Wales.

A well-known beauty spot, according to Peter Bishop it was "one of the most visited sites in north Wales" at the end of the eighteenth century; an 1883 guidebook wrote that it "has occupied the artist's pencil perhaps more than any other".

The river was tidal and navigable up to around Pont Aberglaslyn until the early nineteenth century, when the construction of the Cob seawall near Porthmadog prevented the tide from reaching it.

[5] Below the bridge is Llyn Glas (Blue Lake), a former harbour site used for loading copper mined nearby.

[12] As with many older bridges, folklore had claimed that it was constructed by the Devil or by the Romans (described as "highly dubious" by a National Trust survey); a stone with the marking "W M 1656" scratched on it was found during reconstruction, providing a terminus ante quem.