The Whitewater River Run in California covers a segment of 6.7 miles, starting from the Headwaters in Marble Mountains Wilderness and ending at the Pre-1984 Wilderness Boundary. The ideal streamflow range for the area is between 400 and 1000 cfs. The river is classified as Class III to IV, making it a challenging run for experienced kayakers and rafters.

There are several notable rapids and obstacles along the river run, including Hell Hole, Chinese Wall, and the infamous Suckhole. These features require a high level of skill and experience to navigate safely. It is important to note that the Whitewater River Run is not recommended for beginners.

To ensure the safety of all visitors, there are specific regulations in place for the area. A permit is required to enter the Marble Mountains Wilderness, and visitors must adhere to Leave No Trace principles while on the river. Additionally, groups are limited to a maximum of 15 people per day.

Overall, the Whitewater River Run is a challenging and exhilarating experience for experienced kayakers and rafters. However, it is important to approach the area with caution and follow all regulations to ensure a safe and enjoyable trip.