Checking Gauges Army Spc. Mark Aderholt checks the gauges on a CH-47F Chinook helicopter before it departs Joint Base Elmendorf-Richardson, Alaska, April 24, 2016, to fly to Talkeetna, Alaska. Aderholt assisted National Park Service personnel in Alaska with shuttling equipment and supplies to the base camp on Kahiltna Glacier for the upcoming climbing season on Denali, the highest mountain peak in North America. Aderholt is a crew chief assigned to Company B, 1st Battalion, 52nd Aviation Regiment. Army photo by John Pennell SHARE: Download: Full Size (0.36 MB) Tags: Soldiers, Army Credit: John Pennell VIRIN: 160424-A-SO352-001.JPG Photo Gallery