U.S. Marine Corps Gunnery Sgt. Juan Ospina, D Smurfs team captain, heads for the finish line during the mountain- bike portion of the 11th Annual Wilderness Challenge, Oct. 8, 2011, in Fayetteville W.Va. The 12 miles of mountain biking was just one event during the two day challenge that covered fifty two miles of wilderness. (U.S. Air Force photo by Tech. Sgt April Wickes/Released)