The One Mile Above Trailhead To Trailhead run on the Whitewater River in Idaho is a popular destination for experienced kayakers and rafters. The ideal streamflow range for this run ranges from 1,000 to 3,000 cfs, which typically occurs during the spring and early summer months. The class rating for this run ranges from class III to class V, with several challenging rapids and obstacles throughout the segment's 8.5-mile distance. Some of the notable rapids include the Entrance Exam, Devil's Toenail, and Rubber Room.

The Whitewater River is subject to specific regulations, including a requirement for a permit and a limit on the number of groups allowed to access the river per day. Additionally, there are regulations related to camping and fire restrictions in the surrounding area. Kayakers and rafters should also be aware of the potential for high water levels during the spring runoff and the need to wear proper safety equipment, such as helmets and life jackets. Overall, the One Mile Above Trailhead To Trailhead run on the Whitewater River offers a thrilling adventure for experienced paddlers looking for a challenge.