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The Whitewater River Run is a thrilling adventure for experienced rafters and kayakers in the state of Washington. The ideal streamflow range for this run is between 1,500 and 4,000 cfs, which typically occurs in the late spring and early summer months.

This run is classified as Class III-IV, with some challenging rapids and obstacles to navigate. The segment mileage of this run is approximately 13 miles, beginning below the Gorge Powerhouse and ending at the Ross Lake National Recreation Area Boundary.

Some of the notable rapids and obstacles on this run include the Meatgrinder, a Class IV rapid with a series of drops and tight turns, and the Pipeline, a Class III rapid with a steep drop and large waves.

There are specific regulations in place for this area, including a permit requirement for overnight trips in the Ross Lake National Recreation Area. Additionally, all boaters are required to follow Leave No Trace principles and adhere to the wilderness regulations of the area.

Sources:
- American Whitewater: Whitewater River, Washington
- Northwest Rafting Company: Whitewater River Rafting