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
Little River (New Hampshire Atlantic coast) using a new, large culvert installed by the New Hampshire Coastal Program in an effort to improve tidal flow into the salt marsh. Little River (New Hampshire Atlantic coast) The Little River is a 4.6 mile long (7.4 km) river located in southeastern New Hampshire in the United States. It is located entirely in the town of North Hampton, and it flows directly into the Atlantic Ocean, south of Little Boars Head. The river rises in a forested wetland in the northern part of North Hampton and flows south, passing under U.S. 1. The river turns southeast, passes through Mill