Halton Railway was a spur line from Wendover to RAF Halton used to transport coal and other goods to RAF Halton. It closed in 1963.
Opened in 1917, this branch line ran for 1.75 miles (2.82 km) and was constructed by German prisoners of war during World War I.
The majority of the track has since been removed, including the original bridge over the Grand Union Canal which was replaced by a modern footbridge, however much of the line is designated a permissive footpath.
References
Halton Railway Wikipedia(Text) CC BY-SA