The Whitewater River Run is a popular stretch of river located in Washington State, renowned for its thrilling rapids and stunning scenery. The ideal streamflow range for this run is between 400 and 1500 cubic feet per second (cfs), which provides the perfect balance of excitement and safety for experienced paddlers. The Whitewater River Run is classified as a Class III-IV river, meaning that it contains moderate to difficult rapids, with obstacles such as drops, waves, and hydraulics.

The Whitewater River Run is approximately 6 miles long, running from the Private Land Boundary to the Head of Lake Cle Elum Reservoir. Along the way, paddlers will encounter a number of exciting rapids, including "Boulder Drop," "Highway Bridge," and "Intestine," among others. These rapids vary in difficulty, and require careful navigation in order to avoid obstacles and stay safe on the water.

There are several regulations that apply to the Whitewater River Run, including the requirement for all paddlers to wear personal flotation devices (PFDs) at all times, to stay within designated river boundaries, and to respect the rights of private landowners along the river. Additionally, it is important to be aware of seasonal changes in water levels and to plan your trip accordingly, as water levels can rise quickly during spring runoff or after heavy rain.

Overall, the Whitewater River Run is an exciting and challenging river run that offers paddlers a thrilling adventure in a beautiful natural setting. With the right equipment, experience, and preparation, this stretch of river can provide an unforgettable experience for those seeking a new challenge on the water.