Marble Hill is the northernmost neighborhood in the New York City borough of Manhattan. It is one of the few areas within the borough of Manhattan not located on Manhattan Island. Marble Hill was occupied as a Dutch colonial settlement in 1646, and gained its current name in 1891 because of marble deposits underneath the neighborhood. Politically a part of New York County, Marble Hill became an island in the Harlem River when it was separated from the island of Manhattan by the construction of the Harlem Ship Canal in 1895. In 1914, the Harlem River on the north side of Marble Hill was fully diverted to the canal, with landfill connecting the neighborhood to the Bronx. The boundaries of the neighborhood are approximately between Terrace View Avenue and Johnson Avenue to the west, between 228th Street and 230th Street to the north, and cutting through the Marble Hill Houses and River Plaza Shopping Center to the east. Because of this change in topography, Marble Hill is often associated with the Bronx and is part of Bronx Community District 8. In addition, Marble Hill has a Bronx ZIP Code of 10463, and is served by the New York City Police Department's 50th Precinct, headquartered in the Bronx. Unlike the rest of Manhattan, it carries the Bronx area codes 718, 347, and 929, which are overlaid by the citywide area code 917. History Colonization Marble Hill has been occupied since the Dutch colonial period. On August 18, 1646, Governor Willem Kieft, the Dutch Director of New Netherland, signed a land grant to Mattius Jansen van Keulan and Huyck Aertsen which included the whole of the present community. Johannes Verveelen petitioned the Harlem authorities to move his ferry from what is now the East River and 125th Street to Spuyten Duyvil Creek because the creek was shallow enough to wade across, thus providing a means of evading the toll. The ferry charter was granted in 1667. Many settlers circumvented the toll for the ferry by crossing the creek from northern Marble Hill to modern Kingsbridge, Bronx, a point where it was feasible to wade or swim through the waters. In 1669 Verveelen transplanted his ferry to the northern tip of Marble Hill, at today's Broadway and West 231st Street. Bridges Two bridges connected Marble Hill with the mainland: the King's Bridge and the Dyckman Free Bridge. In 1693 Frederick Philipse, a Dutch