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River : One Man's Journey Down the Colorado, Source to Sea Science & Technology dirtiest corners of history andAt age sixty seven, Colin Fletcher, the guru of backpacking in America, undertook a rigorous six month raft expedition down the full length of the Colorado River alone. He needed "something to pare the fat off my soul to make me grateful, again, for being alive." The 1,700 miles between the Colorado's source in Wyoming and its conclusion at Mexico's Gulf of California contain some of the most spectacular vistas on earth, and Fletcher is the ideal