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 is on the towpath side, with only the towpath separating it from the canal in places. Both are surrounded by woods, and the canal is fringed by oak trees, many planted by the Shropshire Union Company to ensure that they had supplies of timber to replace their fleet of wooden boats as that became necessary. At the far end of Blake Mere is the short Ellesmere Tunnel, just long, and beyond that the market town of Ellesmere. A short branch leads into the town, at the end of which is a three-storey, red brick warehouse, dating from the early 19th