The Whitewater River run in the Pasayten Wilderness Boundary of the state of Washington is a popular destination for whitewater enthusiasts. The ideal streamflow range for this section of the river is between 500 and 1,500 cfs. This section of the river is rated as a class II-IV run, depending on the water level.

The segment mileage of this run is approximately 12 miles, starting at the Pasayten Wilderness Boundary and ending at a point on the range line between Sec 12, R14E and Sec 17, R16E. The river rapids and obstacles include Funnel Falls, Pinball Rapid, and Rocky Chute.

Specific regulations to the area include obtaining a permit for overnight camping and following Leave No Trace principles. The use of motorized boats is prohibited in the Pasayten Wilderness Boundary.

Sources for this information include American Whitewater and the US Forest Service. It is important to always check current conditions and water levels before embarking on any whitewater trip.