The McDermitt Cr, N Fk - J8 run on the Whitewater River in Nevada is considered a Class III-IV run, with an ideal streamflow range of 300-800 cfs. The segment mileage for this run is 8.8 miles, with some notable rapids and obstacles such as the "Big Kahuna" and "The Gorge." The run begins in a remote area and offers stunning scenery, making it a popular destination for experienced kayakers and rafters.

There are specific regulations that must be followed in this area, including a permit requirement for commercial use and a prohibition on camping within 200 feet of the river. Additionally, all boaters are required to wear a personal flotation device (PFD) and carry a throw rope, and motorized equipment is not allowed on this section of the river.

It is important to note that the streamflow and difficulty of this run can vary depending on weather conditions and other factors, so it is recommended that boaters check current conditions before attempting this run. Overall, the McDermitt Cr, N Fk - J8 run is a challenging and rewarding experience for experienced whitewater enthusiasts.