New York City worldwide. New York City is situated in the Northeastern United States, in southeastern New York State, approximately halfway between Washington, D.C. and Boston. The location at the mouth of the Hudson River, which feeds into a naturally sheltered harbor and then into the Atlantic Ocean, has helped the city grow in significance as a trading port. Most of New York City is built on the three islands of Long Island, Manhattan, and Staten Island. The Hudson River flows through the Hudson Valley into New York Bay. Between New York City and Troy, New York, the river is an estuary. The
Colonial history of New Jersey existed for the 26 years between 1674 and 1702. Determination of an exact location for a border between West Jersey and East Jersey was often a matter of dispute, as was the border with New York. The border between the two sides reached the Atlantic Ocean to the north of Atlantic City. The border line was created by George Keith, and can still be seen in the county boundaries between Monmouth and Burlington/Mercer Counties; Burlington and Ocean Counties; and Hunterdon and Somerset Counties, reaching upward to a point on the Delaware River which is just north of the Delaware Water