The Snake
Hells Canyon — the deepest gorge in North America.
The river
Hells Canyon is deeper than the Grand, and the Snake through it is big, warm, and full of wave trains that never quite stop.
The beta
length 80 mi (canyon) class III–IV season May–Jul gauge check before you go
How to run it
Run the canyon in late spring on snowmelt. The rapids are friendly but pushy — long waves, not technical slots. Camp on the sandbars.