Hells Canyon
Hells Canyon You are looking across the Snake River from Oregon to Idaho. Interesting how the snow line starts at the horizon. Hells Canyon is the deepest canyon in North America, beating the Grand Canyon by about 1300 feet. If you look at the canyon walls you can see multiple shelves. This is not sedimentary rock layers but basaltic lava flows that erupted and flowed one on top of the last over millions of years.