The Whitewater River Run in Washington State begins at the headwaters of all tributaries and flows into the North Fork Skokomish River. The ideal streamflow range for this run is between 500-1500 cubic feet per second (cfs). This river has a Class III-V rating, meaning it is suitable for intermediate to advanced paddlers with experience in whitewater rafting and kayaking.

The segment mileage of the Whitewater River Run is approximately 5 miles and features several challenging rapids and obstacles. Some notable rapids include the "Entrance Exam," which is a Class IV rapid, and "Typhoon," which is a Class V rapid. Other rapids on this run include "The Narrow," "The Twister," and "The Pinball."

Due to the remote nature of this run, regulations are in place to protect the area and ensure the safety of all participants. A permit is required to access the river, and all participants must follow Leave No Trace principles. Additionally, the use of drones is prohibited in the area to prevent disturbances to wildlife and other visitors.

Overall, the Whitewater River Run offers an exciting and challenging whitewater experience for experienced paddlers. It is important to check current streamflow conditions and obtain all necessary permits and equipment before embarking on this run.