The Christopher Creek River Run on the Salt River in Arizona is a Class III-IV whitewater adventure. The rapids are challenging, but there are pools between each set for recovery. The best time to float is in the spring when the snowpack melts, providing higher water levels. The recommended CFS is 800-1,200 for optimal conditions. Specific obstacles on this section include "Schoolhouse Rock," "Black Rock," and "Chute." It's important to note that the river includes long, flat sections between rapids and requires a shuttle to access. Overall, the Christopher Creek River Run is an exciting and challenging whitewater experience for experienced paddlers.