Under the Biggest Sky of All: 75 Years on Montana's Rocky Mountain Front by Ron Mills, with a foreword by Hal Herring Ron Mills spent 60 years packing and outfitting in the Bob Marshall Wilderness and during the "off-season" worked on cattle ranches, shod and broke horses and moved elk off private land to the Sun River Game Range. In this book he recollects 60 years of working in Montana's beautiful Rocky Mountain Front, and shares some of the stories of the people he took into the wilderness, many humorous and reflective tales, and shares about raising a family and starting a business when money was short.