Joe Foss Field base exchange celebrates 20 years
SIOUX FALLS, S.D. - Sherri Oster(left), Joe Foss Field Base Exchange Manager, and Colleen Wilde (center) and Melody Thomas (right), pause for a photo during the Base Exchange 20th Anniversary celebration here August 6, 2011. Sherri has been with the Base Exchange since it's beginning at Joe Foss Field in 1991. (Photo by Master Sgt. Nancy Ausland)(RELEASED)USAF