The Whitewater River run in Washington state is a popular destination for whitewater enthusiasts, offering a challenging and scenic river course that passes through the Alpine Lakes Wilderness. The ideal streamflow range for the Whitewater River run is between 300 and 1,000 cfs, with higher flows providing more challenging rapids. This class III-IV river run covers a distance of 5.2 miles, starting at the Alpine Lakes Wilderness boundary and ending at the confluence with the West Fork Miller River.

The Whitewater River run features several exciting rapids and obstacles, including Boulder Drop, Pinball, and Tippy Canoe. Boulder Drop is a class IV rapid with a large boulder in the middle of the river, creating a challenging and technical route. Pinball is a series of class III rapids with fast-moving water and tight turns, while Tippy Canoe is a fun and challenging class III rapid with a steep drop.

To ensure the safety of all participants, the Forest Service has established several regulations for the Whitewater River run. These include a mandatory portage around the Upper Boulder Drop rapid, a prohibition on camping within 200 feet of the river, and a requirement to pack out all trash and waste. Additionally, all participants are required to wear a properly fitting personal flotation device (PFD) and helmets are strongly recommended.

In summary, the Whitewater River run is a challenging and exciting whitewater experience that spans 5.2 miles and features several class III-IV rapids and obstacles. The ideal streamflow range is between 300 and 1,000 cfs, and participants must adhere to specific regulations to ensure their safety and protect the natural environment.