Llangollen Canal part of the London Midland and Scottish Railway soon afterwards. After the takeover by the London Midland and Scottish Railway, regular maintenance was often not carried out, and gradually the canals silted up, so that boats could not operate with full loads. Traffic declined, and was significantly affected by a breach that occurred at the Perry Aqueduct, about to the south of Frankton locks, which effectively closed the Montgomeryshire Canal to all traffic. Traffic beyond Frankton to Llangollen had ceased in 1937, and the Frankton to Hurleston section was not used after 1939. The London Midland and Scottish Railway obtained
Llangollen railway station Monday 18 January 1965 but the section between Ruabon and Llangollen Goods Yard remained opened for freight traffic until April 1968. Immediately afterwards the track was removed from the whole line between Ruabon and Barmouth Jn. The Flint and Deeside Railway Preservation Society was founded in 1972, with the aim of preserving one of the region's "axed" railways. Originally the society was interested in preserving the Dyserth to Prestatyn line; however that line was deemed unsuitable because a small amount of freight traffic was still using it. The society refocused its attention on the Llangollen to Corwen section of the