Peconic River
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The Peconic River is a river in Suffolk County, New York in the United States. The river is located in the eastern end of Long Island. The Peconic River flows into the Peconic Bay east of Riverhead.
The river originates in bogs and wetlands in central Long Island near the Brookhaven National Laboratory and flows eastward to the Peconic Bay. It is the longest river on Long Island.
The river is slow-moving, making it ideal for canoists.