The Whitewater River Run is a popular destination for kayaking and rafting enthusiasts in California. The ideal streamflow range for this run is between 500-1500 cfs, with higher flows being more suitable for experienced paddlers. The segment mileage of this run is approximately 7.5 miles, starting at the 8,000 ft contour line boundary and ending at the Atwell Mill Trail Bridge at around 5,800 ft.

The Whitewater River Run is classified as a Class III-IV run, with several challenging rapids and obstacles along the way. Some of the notable rapids include the "Corner Pocket", "S-Turn", and "Horseshoe Falls". Paddlers must be skilled and experienced to navigate these rapids safely.

There are specific regulations that paddlers must follow while on the Whitewater River Run. These include ensuring all equipment is in good condition and properly fitting, wearing a personal flotation device, and carrying a whistle. Additionally, paddlers must adhere to any posted signs and stay within the boundary extend of 0.25 mile on each side of the river.

In conclusion, the Whitewater River Run is a thrilling and challenging adventure for experienced kayakers and rafters. With its ideal streamflow range, class rating, segment mileage, and specific regulations, paddlers can have a safe and enjoyable experience on this iconic California river.