The Kootenai River in Idaho offers a thrilling whitewater river run that is rated Class III-IV, meaning it is suitable for experienced paddlers and requires advanced skills. The ideal streamflow range for this run is between 5,000 and 20,000 cfs, allowing for a challenging and exciting ride. The segment mileage for the whitewater run is approximately 20 miles, with rapids and obstacles such as the Yaak Falls, Nozzle, and Star Hole.

The Kootenai River is regulated by the U.S. Forest Service, and permits are required for commercial outfitters and individual paddlers. It is important to follow all regulations and guidelines set forth by the Forest Service, including safety requirements and environmental protection measures.