The stone towers and arches of Menai Suspension Bridge are built of grey-brown veined limestone quarried nearby in Penmon on the eastern tip of the Isle of Anglesey.
Construction started with the bridge towers in 1819, with the stone, also known as Penmon marble, transported to the site by boat down the Menai Strait.
The Thomas Telford-designed bridge connects Anglesey and the North Wales mainland, and was officially opened to traffic on 30th January 1826.
