Approximately 250 wreaths honor the graves of veterans at the Black Hills National Cemetery, S.D. More than 50 Airmen from Ellsworth Air Force Base, S.D., volunteered to lay wreaths on the graves during the 2010 Wreaths Across America ceremony, held annually on the second Saturday of December in honor of veterans who have passed. (U.S. Air Force photo/Staff Sgt. Marc I. Lane)