Editing Ent Air Force Base (section)

===Cheyenne Mountain transition===
{{Main|Cheyenne Mountain Air Force Station}}
Excavation began for NORAD Command Operations Center (COC) in Cheyenne Mountain on 18 May 1961. The official ground breaking ceremony was held 16 June 1961 at the construction site of the new NORAD Combat Operations Center. Generals Lee (ADC) and [[Laurence S. Kuter]] (NORAD) simultaneously set off symbolic dynamite charges. Estimated cost of the combat operations center construction and equipment was $66 million.{{r|NORAD History}}{{rp|18}}{{efn|The Headquarters NORAD Locations were: Ent Air Force Base, CO September 1957 – March 1963; Chidlaw Building, Colorado Springs, CO March 1963 – January 1988; Building 1470, Peterson Air Force Base, CO January 1988 – March 2003; Building 2, Peterson Air Force Base, CO March 2003 – October 2012; Eberhart-Findley Building, Peterson Air Force Base, CO (ex-Building 2) Beginning October 2012.{{r|NORAD History}}{{rp|36}}}}