The Wilderness Boundary to Forest Boundary section of the Whitewater River Run in Nevada stretches for 8 miles and is rated as a Class III-IV section. The ideal streamflow range for this section is between 400-800 cfs, and it is best to avoid the river when it is below 300 cfs or above 1,000 cfs.

There are several notable rapids and obstacles in this section, including the "Jaws" rapid, which is a steep and technical Class IV drop. Other rapids include "Tombstone," "Frog Rock," and "Pinball." It is important to note that the river can be dangerous and unpredictable, with several rocks and boulders in the water that can create hazards.

There are specific regulations in place for this area, including restrictions on camping and campfires. Visitors must obtain a permit to camp overnight in the wilderness area, and there are also restrictions on the use of motorized vehicles in the area.

Overall, the Wilderness Boundary to Forest Boundary section of the Whitewater River Run is a challenging and exciting stretch of river that requires skill and caution to navigate safely. It is important to adhere to regulations and safety guidelines to ensure a successful trip.