The whitewater river run from Headwaters of East Fork Canyon Creek (Sec 13, T21N, R10E) to Confluence with South Fork Canyon Creek in California is a popular destination for experienced paddlers. The ideal streamflow range for this segment is between 500-1500 cfs, and the class rating is a challenging Class IV-V. The total segment mileage is approximately 8.5 miles, with rapids and obstacles that include "Steep Chutes," "Box Canyon," "S-Turn Rapid," and "Triple Threat."

It is important to note that this river run is not recommended for beginners, and all paddlers should have experience with Class III-IV rapids. Additionally, there are specific regulations to the area, including a requirement for all boaters to have a valid California Boater Card, a personal flotation device (PFD), and a helmet. Overnight camping is not allowed in the river corridor, and fires are prohibited.

Sources for this information include American Whitewater and the Bureau of Land Management. It is important to check current conditions and flow levels before attempting this run, and as with all outdoor activities, to practice safety and respect for the environment. Get driving directions.