The Black River is a blackwater river that empties into the eastern end of Lake Ontario on the shore of Jefferson County, New York in the United States of America. The origin of the name is not clear, but it may stem from the tannic acid that darkens the water in places. The river's source is in various locations, including Little Black Creek and North Lake, in the foothills of the Adirondack Mountains in northern New York. The river ends at Lake Ontario west of the City of Watertown. For the last few miles it forms the boundary between the Towns of Brownville and Hounsfield. The river is an excellent location for fishing. Abundant trout, salmon, bass, and pike are present in the stream. Whitewater rafting and kayaking are popular on some stretches of the river, notably the Black River Canyon, which begins in Watertown and ends in Brownville. The Black River Canyon is one of few whitewater streams which have reliable flows throughout the summer. The "Canyon" itself is not present until you reach Brownville and ends in the Dexter Reservoir.
The Black River is a blackwater river that empties into the eastern end of Lake Ontario on the shore of Jefferson County, New York in the United States of America. The origin of the name is not clear, but it may stem from the tannic acid that darkens the water in places.