The San Juan River from Mexican Hat to Clay Hills winds 84 miles through Monument Valley country — a river of deep geological time. The Honaker Trail formation exposes 300 million years of Earth history in the canyon walls. Ancestral Puebloan ruins, petroglyphs, and granaries appear at nearly every bend. The Goosenecks of the San Juan — where the river meanders 5 miles to travel 1 mile of distance — are among the most photographed geological features in the Southwest.
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.