The Whitewater River run in California begins at the Headwaters in Marble Mountain Wilderness and stretches to the Wilderness Boundary. The ideal streamflow range for this run is between 200-500 cfs, although it can be run at higher levels with caution. It is rated as a class III-IV run, with a total segment mileage of approximately 9 miles.

Some of the specific rapids and obstacles on this run include "House Rock," "Boulder Creek," and "The Meatgrinder." It is important to note that this run is considered an advanced run and should only be attempted by experienced paddlers.

There are specific regulations in place for the Whitewater River run. The Marble Mountain Wilderness requires a permit for overnight camping, and campfires are only allowed in designated areas. Additionally, there are regulations in place for fishing in the river, with specific limits on the size and number of fish that can be caught.

Overall, the Whitewater River run in California offers a challenging and exciting experience for experienced paddlers. It is important to follow all regulations and safety precautions to ensure a safe and enjoyable trip.