The Blackfoot River, located in Montana, is a popular whitewater river run known for its scenic beauty and challenging rapids. The ideal streamflow range for the Blackfoot River is between 500 and 3,000 cubic feet per second (cfs), which provides enough water for a thrilling ride without being too dangerous. The river is rated as a Class II-III, making it a moderate to difficult run suitable for experienced paddlers.

The segment mileage of the Blackfoot River is approximately 60 miles, with the most popular section being the 9-mile stretch from the Johnsrud Fishing Access Site to the Bonner Dam. This section features several rapids and obstacles, including the "Boulder Garden," "Jaws," and "The Fingers."

To protect the natural environment and ensure safety, there are specific regulations in place for the Blackfoot River. Boaters must obtain a permit from the Montana Department of Fish, Wildlife, and Parks before launching their vessel. Additionally, there are restrictions on the use of motorized watercraft and limits on the number of people allowed in each group.

Overall, the Blackfoot River is a challenging and thrilling whitewater run suitable for experienced paddlers. With its beautiful scenery and exciting rapids, it is a must-see destination for any adventurous kayaker or rafting enthusiast.