The Cottonwood Wash run on the Whitewater River in Utah is an exciting and challenging adventure for experienced rafters. The ideal streamflow range for this run is between 600-1500 cubic feet per second (cfs) for optimal conditions. The class rating for this run is class III-IV, with some challenging rapids and obstacles along the way. The segment mileage for this run is approximately 7 miles, with breathtaking scenery throughout.

The rapids on this run include "Cottonwood Falls," "Rattlesnake," "Pony Express," and "Deadman's Drop." Each of these rapids presents its own unique set of challenges, including technical maneuvering and navigating through tight channels. Some of the obstacles to watch out for include large boulders, steep drops, and turbulent water.

There are specific regulations in place for this area, including restrictions on the number of people allowed per raft and guidelines for proper waste disposal. It is also important to have proper safety equipment, including helmets and life jackets, as well as experience in navigating class III-IV rapids.