Space Launch Complex-6 (SLC-6, nicknamed "Slick Six") at Vandenberg Air Force Base in California is a launch pad and support area. The site was originally developed for the Titan III and Manned Orbiting Laboratory, which was cancelled before construction of SLC-6 was complete. The complex was later rebuilt to serve as the west coast launch site for the Space Shuttle, but again went unused due to budget, safety and political considerations.