Today the Boeing LGM-30 Minuteman-l was lifted to its base by two very large cranes and the fearless staff of Mountain States Crane Co.! The Museum acquired this mock-up that represents a Minuteman-l missile of the mid-1960’s, in May of 1972. It is on loan from the National Museum of the United States Air Force. Its length is 53’ 8 inches with a maximum diameter of 5’ 6” and weighs 65,000 lbs. A total of 1,850 missiles of all versions were built between 1962 and 1978. As of 2022 the Minuteman-ll