Llangollen Canal has 19 stone arches, each with a 45-foot (14 metre) span. Another aqueduct carries the canal over the River Ceiriog at Chirk, and there are tunnels nearby at Whitehouses, Chirk, and Ellesmere. The canal also forms the boundary on two sides of the Fenn's, Whixall and Bettisfield Mosses National Nature Reserve. In 2009 an eleven-mile section of the canal from Gledrid Bridge near Rhoswiel through to the Horseshoe Falls, which includes Chirk Aqueduct and Pontcysyllte Aqueduct, was declared a World Heritage site by UNESCO. The canal at Hurleston Junction rises from the Shropshire Union Canal main line, through four adjacent
Llangollen Canal they crossed accompanied by the actor Hugh Griffith and his wife Gunde. The Rolts moored for nearly three months just beyond the aqueduct, near the site where their boat had been built during the First World War. In August they were joined by Roger Calvert and his family, who were attempting to reach the top of the canal in a home-made boat, which was pulled by a donkey. The Rolts travelled with them for part of the journey. Edward Wilson, another canal enthusiast, reached Trevor in his boat in 1952, and the Inland Waterways Association held a rally at Llangollen