The Pinehaven Subdivision to Riverside Campground run on the Whitewater River in Idaho is a popular destination for whitewater enthusiasts. The ideal streamflow range for this run is between 1,000 and 3,000 cubic feet per second (cfs), depending on the experience level of the paddler. The class rating for this run is considered Class III-IV, with occasional Class V rapids, and the segment mileage is approximately 10 miles.

This run features several notable rapids, including Pinball, Meatgrinder, and Piece of Cake. Pinball is a technical rapid with several rocks and drops to navigate through, while Meatgrinder is a steep drop with a large hydraulic that requires precise maneuvering. Piece of Cake is a long rapid with several technical moves required to successfully navigate through it.

There are specific regulations in place for this area, including a permit requirement for commercial outfitters and a prohibition on camping along the riverbanks. Additionally, all paddlers are required to wear a personal flotation device and carry a whistle.

Overall, the Pinehaven Subdivision to Riverside Campground run on the Whitewater River in Idaho is a challenging and exciting whitewater experience for experienced paddlers. It is important to note that water levels can fluctuate rapidly, so paddlers should always be prepared and aware of their surroundings.