Minuteman bases
Minuteman bases at the height of the Cold War were located at Malmstrom AFB, Mont.; Ellsworth AFB, S.D.; Minot AFB, N.D.; Whiteman AFB, Mo.; F.E. Warren AFB, Wyo.; and Grand Forks AFB, N.D. Inland locations in sparsely-populated areas were ideal for very large bases that would be targets for enemy missiles. (U.S. Air Force photo)