The Whitewater River in Idaho is a popular destination for rafting and kayaking enthusiasts. The ideal streamflow range for this river run is between 800-2,000 cfs, depending on the season and recent precipitation. The river is classified as class III-IV, which means it contains moderate to difficult rapids with higher waves and obstacles.

The Headwaters to Elk Meadow Trailhead segment of the Whitewater River is approximately 15 miles long and takes about 3-4 hours to complete. This section of the river contains several notable rapids, including "Big Eddy," "Elk Meadow Rapid," and "Jaws." These rapids require experienced paddlers and strong teamwork, as they can be challenging to navigate.

To ensure safety and preserve the natural beauty of the area, there are specific regulations and guidelines that visitors must follow. For example, all visitors must have an appropriate personal flotation device (PFD) and helmet. Additionally, camping and fires are only allowed in designated areas, and visitors must pack out all trash and debris.

Overall, the Whitewater River run from Headwaters to Elk Meadow Trailhead is a thrilling and rewarding experience for experienced paddlers. However, it is important to respect the regulations and guidelines to ensure safety and protection of the environment.