ELLSWORTH AIR FORCE BASE, S.D. - Staff Sgt. Junyville Gianan, 28th Logistics Readiness Squadron control center support supervisor, participates in the Ultimate Challenge during the base picnic, July 23. During the challenge participants ran an off-road 5k course while performing low crawl, dizzy bat and leap frog obstacles among others. (U.S. Air Force photo/Airman 1st Class Corey Hook)