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 the level of the canal by . After another mile (1.6 km), there is a lift bridge just before the entrance to the Whitchurch Arm, which served the town of Whitchurch. Part of it remains open, and is used for moorings. The section from the main line to Sherryman's Bridge was opened on 6 July 1808, and in 1811 a further extension into the town reached Castle Well. The arm remained closed when the canal reopened in the 1950s, but Whitchurch Town Council looked at ways of bringing boats back into the town in the early 1980s and the embryonic