The Sams Mesa Box Canyon Whitewater River Run in Utah offers an exhilarating experience for advanced kayakers and rafters. The ideal streamflow range for this run is between 400-800 cfs, which provides for a challenging yet manageable adventure. This section of the river is classified as Class IV-V rapids, meaning they are very difficult and require advanced skill and experience to navigate. The segment mileage for this run is approximately 3.5 miles.

Some of the notable rapids and obstacles along this run include "Toilet Bowl," "Pinball," "Satan's Gut," and "The Box." These rapids can be technical and dangerous, with large waves, tight corners, and potential hazards such as rocks and strainers. It is important for paddlers to be in top physical condition and have the appropriate gear and skills to safely navigate these rapids.

To protect the natural environment and ensure safety, there are specific regulations in place for this area. All boaters must obtain a permit from the Bureau of Land Management (BLM) and follow their guidelines and regulations. Additionally, groups must be limited to six people and must have a designated trip leader with advanced experience and knowledge of the area. Overall, the Sams Mesa Box Canyon Whitewater River Run offers a thrilling adventure for experienced paddlers who are up for the challenge.