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The Whitewater River Run in Arizona is a popular destination for outdoor enthusiasts seeking a thrilling whitewater experience. The ideal streamflow range for this run is between 1000 and 4000 cubic feet per second (cfs), which typically occurs during the spring months. The river is rated as a Class III-IV, with rapids ranging from moderate to difficult. The run is divided into several segments, with a total mileage of approximately 18 miles.

One of the most challenging sections of the Whitewater River Run is the West Arm, which features a series of steep drops and technical rapids. Another notable feature of the run is the Confluence Rapid, where the Whitewater River meets the Colorado River. This rapid is known for its large waves and powerful currents, making it a thrilling and challenging section of the run.

In terms of regulations, all boaters are required to obtain a permit from the Bureau of Land Management (BLM) in order to access the Whitewater River. Additionally, various safety regulations are in place to ensure that boaters are adequately prepared for the challenges of the run. These regulations include requirements for personal flotation devices, safety equipment, and other necessary gear.

Overall, the Whitewater River Run is a challenging and exhilarating adventure for experienced whitewater enthusiasts. With its ideal streamflow range, challenging rapids, and beautiful scenery, it is a must-visit destination for anyone looking to experience the thrill of whitewater rafting in Arizona.