Dr. Warren Doyle, a retired college professor, is recognized as having traversed the Appalachian Trail more times than anyone else. He has 17 traverses of the trail under his belt ...view moreDr. Warren Doyle, a retired college professor, is recognized as having traversed the Appalachian Trail more times than anyone else. He has 17 traverses of the trail under his belt and 37,000 miles under his feet. He loves to share his love and enthusiasm for the trail and educate people on how to fulfill their dream of hiking it.view less