Upminster a number of windmills in Upminster and one of which, a smock mill built in 1803, remains. Local industry included a tannery, gravel extraction and a brick works that was connected to the railway station by a tramway in 1895. The London, Tilbury and Southend Railway from Fenchurch Street was extended from Barking to Upminster in 1885. The underground Whitechapel and Bow Railway opened in 1902 and allowed through services of the District Railway to operate to Upminster. The District converted to electric trains in 1905 and services were cut back to East Ham. Delayed by World War I, electrified
London Underground Fourteen Underground stations are outside Greater London, of which five (Amersham, Chalfont & Latimer, Chesham, and Chorleywood on the Metropolitan line, and Epping on the Central line), are beyond the M25 London Orbital motorway. Of the 32 London boroughs, six (Bexley, Bromley, Croydon, Kingston, Lewisham and Sutton) are not served by the Underground network, while Hackney has Old Street and Manor House only just inside its boundaries. Lewisham used to be served by the East London line (stations at New Cross and New Cross Gate). The line and the stations were transferred to the London Overground network in 2010. London