In 1989, Colin hiked and rafted the entire length of the Green River/Colorado River from its source in the Wind River Range of Wyoming to the Gulf of California. He was evidently the first person ever to do this. In his 1997 book River: One Man’s Journey Down The Colorado, Source To Sea he compared the course of the Colorado with the stages of life in general and his personal in particular.
Tour: 25th anniversary-tour
