See also Transport in the Isle of Man. The Isle of Man has a rich transport heritage and boasts the largest narrow-gauge railway network in the British Isles with several historic railways and tramways still in operation. These operate largely to what is known as "Manx Standard Gauge" (3 ft (914 mm) narrow gauge) and together they comprise about 65 miles (105 km) of Victorian railways and tramways. The Isle of Man Railway Museum in Port Erin allows people to find out more about the history of the Manx railways, and was until 1998 accompanied by a similar museum in Ramsey, which was dedicated to the history of the electric line, but this was closed and converted into a youth club. The steam railway to the south of the island, electric to the north and mountain line to the summit of Snaefell