Enos Mills, naturalist and conservationist, was instrumental in the creation of Rocky Mountain National Park. Like his mentor John Muir, Mills was an intrepid solitary high country rambler, as well as an accomplished Colorado mountain guide. There are mountain tales aplenty in "Adventures of a Nature Guide." At one point, Mills climbs Long's Peak alone in a gale with winds topping 170 mph., "carried away with the wild, elemental eloquence of the storm." Near the summit, the wind is so fierce he cannot make headway, so he concludes to "reverse ends." "Putting a shoulder against a rock point, I allowed the wind to push my legs around. This . . . enabled me to brace effectively with my feet, and also to hang on more securely with my hands. . . There was no climbing; the wind sucked, dragged, pushed, and floated me ever upward."