Rivers

Three National Wild and Scenic Rivers run through the Hells Canyon Wilderness: the Snake, Imnaha, and Rapid rivers:

Snake River

66.9 miles Total
32.5 miles are designated "wild"
34.4 miles are designated "scenic."

Imnaha River

77 miles Total
In 1988, 15 miles were designated wild
4 miles were designated scenic
58 miles were designated recreational
Only a portion of the Wild and Scenic Imnaha is located within Hells Canyon Wilderness

Rapid River

26.8 miles total  from the headwaters of the main stem to the National Forest boundary
The segment of the West Fork from the wilderness boundary to the main stem are designated wild
The river contains three endangered fish species - chinook salmon, steelhead, and bull trout