The Whitewater River run in Montana is a popular destination for experienced kayakers and rafters. The ideal streamflow range for this run is between 300-800 cfs, which provides a moderate to challenging level of difficulty. The segment mileage for this run is approximately 10 miles, with a class rating of III-IV.

Throughout the run, there are several notable rapids and obstacles, including The Notch, a narrow chute with a large rock in the middle, and The Kitchen Sink, a series of intense waves and hydraulics. It is important for paddlers to be familiar with these obstacles and have proper equipment and skills to navigate them safely.

In terms of regulations, the Whitewater River run is located within the Absaroka-Beartooth Wilderness and is subject to specific rules and restrictions. Visitors must obtain a wilderness permit and follow Leave No Trace principles, including packing out all trash and minimizing impact on the natural environment.

Overall, the Whitewater River run is a challenging and exciting adventure for experienced paddlers, but it is important to approach it with caution and respect for the wilderness environment.