SNOW DUTY U.S. Air Force Maj. Anthony Deluca clears a pathway at an Alaska Long Period Array site, at a remote operating facility on the Pacific Alaska Range Complex, Eielson Air Force Base, Alaska, Dec. 16, 2008. Deluca is the commander, Detachment 460. The detachment monitors underground nuclear seismic activity and atmospheric nuclear radiation and collects ground samples for analysis. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 794408-E-OXD66-184.jpg Photo Gallery