The whitewater river run from Sec 17, T35N, R4E to Sec 36, T35N, R4E in Colorado is a thrilling adventure for experienced whitewater enthusiasts. This segment of the river has a class rating of III-IV and has a total mileage of approximately 9 miles. The ideal streamflow range for this run is 500-1500 cfs.

The river has several rapids and obstacles that challenge even the most experienced kayakers and rafters. Some of the notable rapids include the "Satan's Cesspool," "The Maze," and "Rocky Falls."

It is important to note that this section of the river is designated as a wild and scenic area, and there are specific regulations in place to protect the natural environment. Visitors must obtain a permit from the Bureau of Land Management before entering the area. Additionally, all visitors must adhere to the "leave no trace" principles to protect the fragile ecosystem.

In summary, the whitewater river run from Sec 17, T35N, R4E to Sec 36, T35N, R4E in Colorado is a thrilling adventure for experienced whitewater enthusiasts. The ideal streamflow range is 500-1500 cfs, and the segment has a class rating of III-IV. Visitors must obtain a permit and adhere to specific regulations to protect the natural environment.