NORAD’s Cheyenne Mountain Combat Center, c.1966

The article discusses the NORAD Cheyenne Mountain underground facility, which served as America's command center during the Cold War. The facility was designed to provide early warning of air attacks and direct defensive air battles. Construction of the facility began in 1961 and was completed in 1964, with a focus on defending against the USSR's ICBM capabilities. The center featured advanced computing technology, backup facilities, and provisions for 30 days of operation in a sealed condition. The article also highlights the facility's communication systems, satellite-tracking instruments, and notable visitors, such as President Richard Nixon.