** FOR IMMEDIATE RELEASE--FILE **Steve Purdy, 58, of Claymount, Del., hikes at cloud level on the Knife Edge, a narrow serrated ridge leading to the summit of Mount Katahdin, in this June 21, 2006, file photo, in Baxter State Park, Maine. The rugged route is considered to be the most spectacular trail in the East. (AP Photo/Robert F. Bukaty/FILE)