Geography of New York City the coast of the Northeastern United States at the mouth of the Hudson River in southeastern New York state. It is located in the New York–New Jersey Harbor Estuary, the centerpiece of which is the New York Harbor, whose deep waters and sheltered bays helped the city grow in significance as a trading city. Much of New York is built on the three islands of Manhattan, Staten Island, and western Long Island, making land scarce and encouraging a high population density. The Hudson River flows from the Hudson Valley into New York Bay, becoming a tidal estuary that separates the
New York – New Jersey Line War New Jersey's border claim, described what he had heard of this meeting. I Do hereby Certify that some Time in or about as I Believe the year 1685, or 1686, Col. Thomas Dongan then Governor of New York and others met with Gawen Lawry, then Governor of New Jersey with some of the Gentlemen of the Council of New Jersey and others at a Place nigh which stood afterwards the house of Col. William Merrett on the West Side of Husdsons River where an observation was then made of the latitude and mark'd with a Pen Knife on a Beech-Tree