The Bakerloo line (/ˌbeɪkərˈluː/) is a line of the London Underground. It is coloured brown on the Tube map. It runs partly on the surface and partly at deep level, from Elephant & Castle in south-east to Wealdstone in north-west of London. The lines serves 25 stations of which 15 are underground. It has 25 stations; 15 of these are underground. The line is around 14.4 miles (23.2 km) long.
The line gets its name because it goes through the stations Baker Street tube station and Waterloo tube station. North of Queens Park, the line runs next to the West Coast Main Line.