South Dakota Minuteman II L.S.M.B. Cap - South Dakota was home to a massive network of Minuteman II nuclear missiles during the Cold War (managed by Ellsworth Air Force Base). Launch Site Maintenance Branch: A specific unit responsible for the upkeep ofthe 150 missile silos and 15 launch control centers scattered across the western South Dakota plains. South Dakota Buttons, The American Uniform Company Lot Size 12x12x5" 2 LB All information and photos are intended to be as accurate as possible, but errors are possible. No item may be returned or refused based on this information, which is provided as a service to bidders. Please read terms & conditions and ask questions before bidding.