Bakerloo line

The Bakerloo line () is a London Underground line that runs between Harrow & Wealdstone in suburban north-west London and Elephant & Castle in south London, via the West End. Coloured brown on the Tube map, it serves 25 stations, of which 15 are below ground, over 14.4 miles. It runs partly on the surface and partly at deep level.

The line was so named because it serves Baker Street and Waterloo. North of Queen's Park, the line shares tracks with the London Overground Watford DC Line and runs parallel to the West Coast Main Line. There are, however, tunnels on either side of Kensal Green.