English: Metropolitan Line railway at Chesham. Chesham is one of the outermost stations on the London Underground system and an hour and a quarter's journey time from Aldgate in the City. The railway line was opened to Chesham in 1889, but a planned extension to Tring was never built. The line was not electrified until 1960, and at one time had a goods yard to the north of the station which is now a car park. This view was taken looking northwards from the public footpath overbridge to the south of the station.