Geography of New York City Bronx and Manhattan from Northern New Jersey. The Harlem River, another tidal strait between the East and Hudson Rivers, separates Manhattan from the Bronx. The boroughs of New York City straddle the border between two geologic provinces of eastern North America. Brooklyn and Queens, located on Long Island, are part of the eastern coastal plain. Long Island is a massive moraine which formed at the southern fringe of the Laurentide Ice Sheet during the last Ice Age. The Bronx and Manhattan lie on the eastern edge of the Newark Basin, a block of the Earth's crust which sank downward during
Richmond Hill (Manhattan) from the 1820s by Astor as modest brick rowhouses, was also called Richmond Hill, connected to the city through the former water meadow, now drained and filled, as a continuation of Canal Street. Richmond Hill (Manhattan) Richmond Hill was a colonial estate in Manhattan, New York City, that was built on a parcel of the "King's Farm" obtained on a 99-year lease in 1767 from Trinity Church by Major Abraham Mortier, paymaster of the British army in the colony. Part of the site is now the Charlton-King-Vandam Historic District of Manhattan. The house stood southeast of the modern intersection of