The Whitewater River run on the Jicarilla Apache Reservation Boundary in New Mexico is a 17-mile segment that runs from the boundary to the confluence with Vaqueros Canyon. The ideal streamflow range for this segment is between 250-500 cfs, which provides Class II-III rapids. The river is rocky, with some steep drops and technical sections. The most challenging rapids in this section are Cigarette, Boxcar, and Pinball.

The Jicarilla Apache Tribe manages the use of this river, and permits are required to access the area. They limit the number of boaters per day and require a Leave No Trace policy. The tribe also requires that all boats have a spare paddle, personal flotation device, and a whistle. There is no camping allowed along the river, and the tribe prohibits the use of glass containers and alcohol.

According to americanwhitewater.org, the 17-mile segment is broken into two sections. The Upper Whitewater River is 7 miles long and has Class II-III rapids. The Lower Whitewater River is 10 miles long and has Class I-II rapids with a few Class III drops. The river is accessible from Highway 84, and the take-out point is near the intersection of Highway 84 and Highway 64.

In conclusion, the Whitewater River run on the Jicarilla Apache Reservation Boundary to Confluence with Vaqueros Canyon in New Mexico is a popular river run with Class II-III rapids, rocky terrain, and specific regulations enforced by the Jicarilla Apache Tribe. Boaters must have a permit, adhere to a Leave No Trace policy, and follow specific gear requirements. The ideal streamflow range for this segment is between 250-500 cfs, and the segment is broken into two parts, Upper and Lower Whitewater River.