Port of New York and New Jersey of Liberty National Monument, the port district comprises all or part of seventeen counties in the region. The ten that are completely within the district are Hudson, Bergen, Essex, Union (in New Jersey), Westchester (in New York), and the five boroughs of New York City, which are coterminous with the counties of New York, Bronx, Kings, Queens, and Richmond. Abutting sections of Passaic, Middlesex, Monmouth, Morris, and Somerset in New Jersey, and Nassau and Rockland in New York are also within the district. New York Harbor is one of the world's largest natural harbors. The Atlantic Ocean is to the
History of New York City (1855–1897) movement of the 1950s. Pre-war steam ferries had already made Brooklyn Heights into a bedroom community for affluent professionals on Wall Street and other urban areas. Elevated railroads, operated by the Manhattan Railway Company, and other new public transport expanded the commuter area of New York, allowing development of suburbs for commuters of more modest means in Upper West Side and other distant areas. Plans were made for subways to still more remote exurbs such as Harlem and the West Bronx. In the late 19th century, the island's schist bedrock encouraged the early skyscrapers whose successors characterize its skyline today.