Shropshire Union Canal links are to the Llangollen Canal (at Hurleston Junction), the Middlewich Branch (at Barbridge Junction), which itself connects via the Wardle Canal with the Trent and Mersey Canal, and the River Dee (in Chester). With two connections to the Trent and Mersey (via the Middlewich Branch and the Staffordshire and Worcestershire Canal) the SU is part of an important circular and rural holiday route called the Four Counties Ring. The SU main line was the last trunk narrow canal route to be built in England. It was not completed until 1835 and was the last major civil engineering accomplishment of
Llangollen Railway line south of , and proceeded as a single track line on a double track route via to the new station at Llangollen. The line opened to freight on 1 December 1861, and to passengers on 2 June 1862 at a temporary terminus on the town's eastern outskirts. The extension to was undertaken by the associated but separate Llangollen and Corwen Railway company, and involved constructing a long tunnel under the Berwyn Mountains. It, together with the new centrally positioned and larger station in Llangollen, opened for service on 1 May 1865. Designated for closure under the Beeching cuts, the