Connetquot River

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Connetquot River, also known as Great River, is a six-mile-long river in Islip, New York, on Long Island. It is one of Long Island’s four longest rivers and is protected by the state as a Wild, Scenic and Recreational River. The river is famous for fly fishing for brook, brown, and rainbow trout. Its upper reaches flow through the Connetquot River State Park Preserve and Lakeland County Park in Islandia, where springs feed the water and it’s called Connetquot Brook. The estuary south of Sunrise Highway near Oakdale is officially named the Connetquot River, though many people use the same name for the whole waterway. The name comes from the Secatogue tribe and means “Great River.” The river’s watershed is the largest undeveloped, contiguous area in Suffolk County that covers an entire river. It is fed entirely by groundwater springs, and like other Long Island rivers, it does not originate from a lake. The river drains about 4,500 acres.