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 later that year. By 1954, the Llangollen Canal was in a curious position. Under the terms of the LMSR Act of abandonment, obtained in 1944, navigation had been abandoned, but the right to sell water had been retained. This was to be for a period of ten years, during which those who bought the water were required to make alternative arrangements, which they failed to do. Since the nationalisation of the canals in 1948, the canal had been managed by the British Transport Commission, who had to obtain Parliamentary approval to extend this arrangement. Meanwhile, a number of pleasure boats