ELLSWORTH AIR FORCE BASE, S.D. -- Airman 1st Class Mitchell Carrell, 28th Civil Engineer Squadron firefighter, drinks water after hiking in the sun to keep hydrated at Rapid Creek Trail Head, Rapid City, S.D., June 16. It’s important to drink water while doing activities in the sun to keep the body from overheating. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)