The Whitewater River run in the state of New Mexico spans from the headwaters of Cottonwood Canyon in Sec 32, T25S, R22E to the confluence of Cottonwood and Dark Canyons in Sec 10, T25S, R22E. The ideal streamflow range for this run is between 200-400 cfs. This section of the river is classified as Class III to IV, with some Class V rapids during high water periods.

The segment mileage for this run is approximately 13 miles, and it features several challenging rapids and obstacles such as the S-Turn, Corkscrew, and the infamous Skull Rapid. The river also has numerous boulder gardens and tight channels that require technical paddling skills.

To ensure safety and protect the environment, paddlers must comply with specific regulations in the area. For instance, all boaters must have a valid permit and must adhere to the guidelines set by the Bureau of Land Management for the Rio Puerco Field Office. Additionally, boaters are required to pack out all trash and minimize their impact on the environment.

In conclusion, the Whitewater River run in New Mexico is a challenging and exciting experience for experienced paddlers. With its Class III to IV rapids, boulder gardens, and technical channels, this section of the river offers an adrenaline-packed adventure. However, it is crucial to follow the regulations and guidelines set by the authorities to ensure safety and minimize environmental impact.