“A masterwork mile-by-mile guide to the Colorado River through the Grand Canyon! This is both the perfect companion to have with you when boating the canyon, and also, for the people with better judgment, a perfect way to drink in the rich wild history, geologic grandeur, whitewater lore, ‘hydraulic mayhem,’ ‘blast-furnace heat,’ and deep soul-stirring magic of the place from the comfort of an easy chair. The tone throughout is rousing, reverent, humble. I couldn’t put it down.”—William McGinnis, author of Whitewater Rafting, The Guide’s Guide Augmented: Reflections on Guiding Professional River Trips, and thriller novels including Whitewater: A Thriller.