Located next to Duluth’s International Airport is a building that used to contain one of the Air Force’s primary systems for detecting intruding aircraft during the Cold War. The computer that the building contained was a part of the Semi-Automatic Ground Environment…
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The Air Force Station located in Michigan’s Keweenaw Peninsula, called Calumet Air Force Station (or CAFS for short) had an important mission; watch the northern skies for enemy attacks. Between its creation in 1950 until its eventual decommissioning on September…
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