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The Whitewater River Run, located in the state of Washington, is a popular destination for whitewater enthusiasts. The headwaters of the river include all tributaries to the confluence with Duckabush River, making it a long and diverse river run. The ideal streamflow range for this river is between 500-1500 cfs, with a class rating of III-IV. The river has a total segment mileage of approximately 10 miles.

The Whitewater River Run has several notable rapids and obstacles, including the "Toilet Bowl," a swirling eddy that can be challenging to navigate, and the "Twisted Sister," a rapid with several tight turns and drops that require precise maneuvering. There are also several large boulders and tight channels that require skilled navigation.

There are specific regulations to the area that must be followed to ensure the safety of all participants. The use of personal flotation devices is mandatory, and all participants must have adequate safety gear, including helmets and appropriate footwear. Additionally, there are specific rules for camping and fires in the area, and it is important to be aware of any closures or restrictions that may be in place due to weather or other safety concerns.

Overall, the Whitewater River Run is a challenging and exciting adventure for experienced whitewater enthusiasts. It is important to approach the river with caution and respect, following all regulations and safety guidelines to ensure a safe and enjoyable experience.