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
New York State Route 55 route of NY 55 along the north side of the Rondout Reservoir between Grahamsville and Napanoch. It was assigned in the mid-1940s. New York State Route 55 New York State Route 55 (NY 55) is a state highway in southern New York, running from the Pennsylvania state line at the Delaware River in Barryville to the Connecticut state line at Wingdale. It is the only other state highway beside NY 7 to completely cross the state, from border to border, in an east–west direction, although NY 17 does so and is partially east–west. It also forms a concurrency when it