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
Portville, New York the county. Its eastern town line is the border of Allegany County, New York, and its southern town line is the McKean County, Pennsylvania, border. The Allegheny River flows through the south part of the town. Oswayo Creek joins the Allegheny south of Portville village, and Dodge Creek joins the river in the village. New York State Route 305 (running north-south) and New York State Route 417 (running east-west) pass through the town. Eldred and Ceres townships in McKean County, Pennsylvania, are south of Portville. The towns of Clarksville and Genesee in Allegany County form the eastern boundary. The town