The Whitewater River Run from Lake Dorothy to Alpine Lakes Wilderness Boundary in Washington State is a popular destination for whitewater enthusiasts. The ideal streamflow range for this section of the river is between 500 and 2000 cfs. The river is rated as Class III in difficulty, with a segment mileage of approximately 8 miles.

The river features several rapids, including Boulder Drop, a Class IV rapid that requires careful navigation through a boulder-filled channel. Other notable rapids include Pinball, Mile Long, and Staircase.

There are specific regulations in place for this area, including the requirement for a valid Washington State Discover Pass or other valid recreation pass to access the trailhead. Additionally, boaters are required to practice Leave No Trace principles and are urged to wear appropriate safety gear, including helmets and personal flotation devices.