Submitted photo For the past decade, James Holloway has traded the comfort of four walls for the vast freedom of trails that stretch through America’s most breathtaking wilderness. At 39, the seasoned backpacker from Flagstaff, Arizona , has logged thousands of miles in boots, with the latest being a seven-day trek through Glacier National Park in Montana — a journey he says “challenged everything I’ve learned in ten years.” “I've made every mistake you can imagine." “Overpac