The Whitewater River Run is a thrilling adventure that begins 1.5 miles upstream from the confluence with the Colorado River and ends at the confluence in the state of Arizona. The ideal streamflow range for this run is between 2,000 and 25,000 cubic feet per second (cfs), depending on the skill level of the paddlers. The segment mileage is approximately 10 miles, and the class rating is between III and IV. This rating indicates the rapids are moderate to difficult and have a moderate to high level of risk.

During the run, paddlers will encounter several rapids and obstacles that require skillful navigation. Some of the most notable rapids include House Rock Rapid, Hance Rapids, and Granite Rapid. These rapids are known for their strong currents, steep drops, and large waves. Paddlers must be aware of the potential hazards and take appropriate safety precautions.

To ensure the safety of paddlers and preserve the natural environment, there are specific regulations to the area. All paddlers must have a permit to run the river, and the number of permits issued is limited to protect the ecosystem. Additionally, paddlers must follow Leave No Trace principles to minimize their impact on the environment.

In conclusion, the Whitewater River Run is a exciting adventure that requires skill and experience. With an ideal streamflow range between 2,000 and 25,000 cfs, a class rating of III to IV, and several notable rapids and obstacles, this run is not for the faint of heart. To ensure safety and environmental protection, specific regulations must be followed, including obtaining a permit and following Leave No Trace principles.