The Indian River in Jefferson County, New York, is a mostly slow-moving warmwater fishery that flows over 75 miles from Indian River Village to Black Lake, where it enters the Oswegatchie River. This scenic waterway varies greatly in width from 25 to 200 feet, with generally shallow depths of less than 10 feet punctuated by numerous deeper holes. The river's corridor features mostly flat terrain with low rolling hills and occasional steep slopes that create rapids and waterfalls. Extensive marsh and pasture lands flank much of the river, along with sections of rocky ledges and wooded banks. The Indian River offers excellent fishing and canoeing opportunities throughout its length, with considerable water level fluctuation during spring when it often floods over its banks, especially in the lower sections.