Hells Canyon is the deepest river gorge in North America — 7,993 feet from the Seven Devils peaks to the Snake River, deeper than the Grand Canyon. The 79-mile corridor along the Idaho-Oregon border has no road access for 68 miles. Class III–V whitewater, ancient Nez Perce pictographs, and North America's largest bighorn sheep population. Dam-controlled flows create year-round paddling.
River conditions are community-verified. CFS ranges, difficulty ratings, and trip sections may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level. If you spot an error, use the Improve This River button at the top of the page — your local knowledge is what makes this atlas accurate.