Peconic River

From Wikipedia, the free encyclopedia

Peconic River
Origin	Brookhaven National Laboratory
Mouth	Riverhead/Flanders Bay
Basin countries	United States
Length	15 mi (24 km)
Source elevation	249 feet (76 m)
Mouth elevation	0
Avg. discharge	37 cubic feet (1 m³)/second
Basin area	75 sq mi (194 km²)

The Peconic River is a river in Long Island's Suffolk County, New York in the United States. The river is located in the eastern end of Long Island. The Peconic River flows into Flanders Bay which in turn connects to 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 and is almost entirely within the Central Long Island Pine Barrens which was set up in 1993 to protect its relative wilderness standing.

It is fresh water until about the center of Riverhead where it becomes an estuary.

The river is slow-moving, making it ideal for canoeists.

It forms the border between Brookhaven and Riverhead towns as well as the border between Riverhead and Southampton (town), New York.