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The Whitewater River Run of Thorofare Creek Source to Yellowstone Np Boundary is a popular adventure sport for rafters and kayakers looking for a challenging and scenic river run. The ideal streamflow range for this river is between 300 and 800 cubic feet per second (cfs), which is considered a moderate to high flow rate. The class rating for this river run ranges from class II to class IV, depending on the segment of the river being navigated. The total segment mileage for this river run is approximately 26 miles.

There are specific river rapids and obstacles that make this river run exciting and challenging. Some of the notable rapids include the Thorofare Rapid, the Whirlpool Rapid, and the Big Drop Rapid. The river also has several sections of technical whitewater, which requires skill and experience to navigate.

There are specific regulations for this area that must be followed by all visitors. For example, all boaters must have a Yellowstone National Park boating permit, and all boats must be inspected for invasive species before entering the river. Additionally, all visitors must follow Leave No Trace principles and pack out all trash and waste.

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