Space Launch Complex 10, or Missile Launch Complex 10, is located on Vandenberg Space Force Base in Lompoc, California. It was built in 1958 to test ballistic missiles and developed into a space launching facility in 1963. Prior to 1966 Space Launch Complex 10 West was known as Vandenberg AFB Pad 75-2-6. It remains a rare pristine look at the electronics and facilities created in that era that helped the United States grow its space capabilities. The last launch from this complex was a Thor booster in 1980. It was declared a National Historic Landmark in 1986.