The South Fork Clearwater River is a popular whitewater river run in Idaho. The ideal streamflow range for this river is between 1,000 and 4,000 cubic feet per second (cfs), with the best time to run it being in late spring and early summer. The South Fork Clearwater River is rated as a class III-IV river, with several challenging rapids and obstacles along the way.

The segment mileage for this river run is approximately 47 miles, starting at Section 30, T29N, R5E and ending at the headwaters. Some of the notable rapids on the South Fork Clearwater River include Four Corners, Mile Long, and Schoolhouse. The river also has several boulder gardens and technical sections that require paddlers to navigate with precision.

It is important to note that there are specific regulations in place for the South Fork Clearwater River. For instance, commercial outfitters are required to have permits to operate on the river, and private boaters are required to obtain a permit as well. Additionally, there are restrictions on the use of motorized boats, and certain portions of the river are closed to boating during certain times of the year to protect fish habitat.

Overall, the South Fork Clearwater River is a challenging and exciting whitewater run that requires experienced paddlers to navigate safely. With the right conditions and careful planning, it can provide an unforgettable adventure for those who are up for the challenge.