Visitor Center project under way Published June 15, 2007 LITTLE ROCK AIR FORCE BASE, Ark. -- The Little Rock Air Force Base visitor's center at the Vandenberg Gate has been temporarily relocated to a trailerĀ in the center's parking lot due to a remodeling project. The project is slated to last seven to 10 days. Visitors are asked to have patience during this time frame as they may experience additional delays.