The whitewater river run from the confluence of Horse Canyon Headwaters in Sec 11, T25S, R22E to the confluence of Horse and Payne Canyons in Sec 1, T25S, R22E in the state of New Mexico is a thrilling adventure for experienced rafters. The ideal streamflow range for this section of the river is between 150 and 1000 cfs.

This segment of the river has been rated as Class III to IV, which means that it is challenging and requires advanced skills to navigate. The segment mileage is approximately 9.5 miles, and it includes several rapids and obstacles, such as the "Screaming Left Turn," "Rock Garden," and "S-Curve."

It is crucial to note that this section of the river is only accessible by foot, horseback, or helicopter, and there are specific regulations to the area. The area is designated as wilderness, and therefore, no motorized vehicles are allowed. Additionally, river permits are required for all visitors.

In conclusion, the whitewater river run from the confluence of Horse Canyon Headwaters to the confluence of Horse and Payne Canyons is a challenging adventure for experienced rafters. The ideal streamflow range, class rating, segment mileage, specific rapids/obstacles, and regulations to the area must be taken into consideration before planning a trip.