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
Government of New York City in the city but run largely in the suburban counties of New York State and Connecticut. Other regional transportation is managed by the Port Authority of New York and New Jersey, including the bridges and tunnels between New York City and New Jersey, and all airports and seaports within the city. The Port Authority is jointly controlled by the Governor of New Jersey and Governor of New York. The seal of New York City, adopted in an earlier form in 1686, bears the legend , which means simply "The Seal of the City of New York". "Eboracum" was the Roman