Staines and West Drayton Railway

The Staines & West Drayton Railway (S&WDR) is a former railway on the western edge of London, England. It was about 5½ miles (9 km) long and ran roughly north-south along the River Colne. It opened from West Drayton on the Great Western Main Line to Colnbrook in 1884 and reached Staines the next year.

More information on the Wikipedia page.