ROCKY RAPPEL U.S. Army Ranger instructors watch as an Army Ranger student rappels down the side of a 60-foot rock face on Camp Frank D. Merrill, in Dahlonega, Ga., Feb. 20, 2011. The students learn mountaineering skills, including rappelling and knot tying, during the course. SHARE: Download: Full Size (0.20285 MB) Tags: Week In Photos, Week In Photos Credit: VIRIN: 936039-D-UHU18-840.jpg Photo Gallery