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Hells Canyon is a ten mile wide canyon located along the border of northeastern Oregon and western Idaho in the United States. It is North America's deepest river gorge at 7,993 feet.The canyon was carved by the waters of the Snake River and plunges more than a mile below the canyon's west rim on the Oregon side and 8,000 feet below the peaks of Idaho's Seven Devils Mountains range to the east. The area is inaccessible by road. Enjoy!