Two London Underground lines serve the Tottenham area. The Piccadilly line, which opened in 1932, has one station Turnpike Lane, which was the first Underground station within the then Tottenham Borough boundaries. The Victoria line, which opened in 1968, has its operating depot in Tottenham at Northumberland Park, as well as two stations, Seven Sisters and Tottenham Hale, in the area. Stations Seven Sisters, Tottenham Hale, Bruce Grove, White Hart Lane and Northumberland Park also serve the area with train services provided by London Overground, apart from Tottenham Hale and Northumberland Park which is only a National Rail stations, however if Crossrail 2 gets planning permission to be made then both those stations will also be served by Crossrail services between Hertford East and several destinations in Surrey. Those two stations are on the main Lea Valley Line; the West Anglian Main Line, with services provided by Abellio Greater Anglia, while Seven Sisters, Bruce Grove and White Hart Lane are all on the Lea Valley; Cheshunt/Enfield Town Line which services are provided by London Overground. London Overground trains also serve South Tottenham station on the Gospel Oak – Barking Line.