Joint Surveillance System
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The Joint Surveillance System is a joint United States Air Force and Federal Aviation Administration system for the atmospheric air defense of North America. It replaced the Semi Automatic Ground Envi
The former J-31 San Pedro JSS ARSR-1 radar site, California
Fortuna Air Force Station
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Fortuna Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 4.2 miles west of Fortuna, North Dakota. It was closed in 1979 as a radar station, remai
Circa 1977 historical photograph