London Borough of Hounslow Western Main Line, Heathrow Express and in the future Elizabeth line. In addition to this it is also served by London Underground's District and Piccadilly lines. Because of numerous rail links, the borough has fast connections to Central London, Heathrow Airport and the rest of Greater London. The stations in or near the Borough are: Shared with the London Borough of Hammersmith and Fulham: Shared with the London Borough of Richmond-upon-Thames: Shared with the London Borough of Ealing: Solely serving the London Borough of Hounslow: Shared with the London Borough of Hillingdon: <nowiki>*</nowiki>"Indicates station is not in the Borough" In
London Borough of Tower Hamlets The River Lea also forms the boundary between those parts of London historically in Middlesex, with those formerly in Essex. The Isle of Dogs is formed from the lock entrances to the former West India Docks and the largest current meander of the River Thames and the southern part of the borough forms a part of the historic flood plain of the River Thames; and but for the Thames Barrier and other flood prevention works would be vulnerable to flooding. The Regent's Canal enters the borough from Hackney to meet the River Thames at Limehouse Basin. A stretch of the