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
Wrenbury Marbury, Aston and Audlem. The village is on the Llangollen branch of the Shropshire Union Canal. It has an unmanned railway station on the Welsh Marches Railway. The Cheshire Cycleway runs through the village and the South Cheshire Way long-distance path runs just south of it. In 2006, the total population of the civil parish was estimated as 1,100. In the 2001 census, the recorded population was 1,060. The population has doubled since the beginning of the 20th century; the historical population figures were 404 in 1801, 490 in 1851, 491 in 1901 and 708 in 1951. The red sandstone