This spectacular branch of the Oswegatchie plunges over waterfalls and through a rocky gorge. A drop of 90 feet in the first two miles gets the adrenalin going with an exciting mix of waterfalls and Class III rapids. Scouting is necessary to determine possible runs or carries around impassable sections, such as the narrow Sluice Falls. The second half of this 12-mile run is a calm Class I flatwater that winds through marsh and woodland.