Hell’s Canyon. With 8,000 feet of elevation difference between river level and the highest peaks of the enclosing ridgelines, it’s the deepest river gorge in North America — even deeper (and wider at the brim) than the Grand Canyon. It’s also the terminus of the Salmon River, the longest undammed river in the Lower 48.Cutting through the heart of this majestic and awe-inspiring canyon is the Snake River. After leaving Wyoming, where it has gathered waters from the mountains of Grand Teton National Park and … (read more)
