The Whitewater River Run in Idaho is a stunning and challenging river that spans over 70 miles from its source in the Sawtooth Mountains to its mouth in the Salmon River. The ideal streamflow range for this river is between 800 and 2,500 cfs, which typically occurs during the spring and early summer months. The river is rated as Class III-IV, meaning it is suitable for experienced paddlers.

The Whitewater River is divided into four segments, each with unique rapids and obstacles. The Upper section starts at the source and spans 15 miles, featuring exciting rapids such as "Eagle Nest" and "Sheep Dip." The Middle section covers 17 miles and includes challenging rapids like "Hillary's Hole" and "Son of Hillary's." The Lower section stretches for 23 miles and has some of the river's most impressive rapids, including "The Maze" and "Box Canyon."

To ensure safety, specific regulations must be followed on the Whitewater River Run. All paddlers must wear personal flotation devices and helmets, and river guides must be certified to guide trips on the river. Additionally, permits are required for commercial trips, and a Leave No Trace policy is enforced to protect the river's natural beauty.

Overall, the Whitewater River Run in Idaho offers a thrilling and unforgettable experience for experienced paddlers seeking a challenge. With its ideal streamflow range, class rating, unique rapids, and specific regulations, it is a must-visit destination for any adventure seeker.