Mr. Staveley, an experienced river runner who carries his passengers in wooden rowboats reminiscent of those used by Major John Wesley Powell in his explorations of 1869, celebrated the centennial by retracing Powell's route on the Green and Colorado Rivers. Scorning the popular pontoons, and wary of vacationing amateurs, Staveley and his companions rowed, shot the rapids and occasionally and regretfully lined through some lovely and once in a while unlovely scenery. He mourns ravages by industry and engineering (there is a sad commentary on the flooding of Green Canyon) and the ""mushrooming madness for mass recreation"" since there were 55,000 holiday enthusiasts at Flaming Gorge on a Memorial Day weekend. White water seer that he obviously is, Mr. Staveley discusses plotting runs by listening' to the water roar, gauging depth by appearance, etc. This has a Sports Illustrated tag and will appeal to that audience which, hopefully, will not show up at Flaming Gorge this May.