The Whitewater River Run from the Forest Service Spillway Boat Ramp below Flaming Gorge Dam to the Bureau of Land Management Boat Ramp at Indian Crossing in Utah is a popular route for experienced whitewater enthusiasts. The ideal streamflow range for this stretch of the Green River is 800-4000 cfs.

This segment of the river is rated as Class III-IV, with challenging rapids and obstacles, including Hell's Half Mile, an exhilarating Class IV rapid. The total distance of this river run is approximately 44 miles.

There are specific regulations for this area, including a required permit for all river trips, which can be obtained through the Bureau of Land Management. Additionally, all boats must have a fire pan and a portable toilet. Campfires are not allowed, and visitors must pack out all garbage.

Overall, the Whitewater River Run from the Forest Service Spillway Boat Ramp below Flaming Gorge Dam to the Bureau of Land Management Boat Ramp at Indian Crossing offers a thrilling and challenging whitewater experience for experienced kayakers and rafters. It is important to note that this is not a beginner-friendly section of the river and only experienced paddlers should attempt this route.