The Whitewater River Run in Idaho is a popular destination for whitewater enthusiasts. The ideal streamflow range for this run is between 500 and 1500 cfs, with the peak season being from May to June. The run is rated as Class III-IV, with some sections reaching Class V. The segment mileage for this run is approximately 14 miles, starting at the Forest Boundary in Section 34, T59N, R2W and ending at Harrison Lake in Section 31, T62N, R2W.

There are several challenging rapids and obstacles along the Whitewater River Run, including Twisted Sister, Devil's Toenail, and Toilet Bowl. These rapids require experienced boaters and careful navigation. It is important to note that there are specific regulations in place for this area, including a permit requirement for commercial outfitters and a limit on the number of private boats allowed each day.

Overall, the Whitewater River Run is a thrilling and challenging experience for experienced boaters. It is important to follow regulations and safety guidelines to ensure a safe and enjoyable trip.