Pontcysyllte Aqueduct & Canal UNESCO World Heritage Site

Canal heritage, engineering landmarks, and landscapes of north-east Wales

The Pontcysyllte Aqueduct & Canal UNESCO World Heritage Site stretches through the Dee Valley in north-east Wales, where canals, aqueducts, tunnels, and historic engineering structures form one of the most significant achievements of the Industrial Revolution. Completed in the early 19th century, the Pontcysyllte Aqueduct remains the highest navigable aqueduct in Britain and one of the most recognisable landmarks in Wales.

Located within the landscapes of Denbighshire and Wrexham, the site forms part of a wider network of routes, landscapes, and places connected by waterways, footpaths, and historic transport corridors. The Pontcysyllte Aqueduct & Canal links industrial heritage, river valley landscapes, and engineering history across one of Wales' most significant UNESCO World Heritage Sites.