Wainstein cites: Historical and Research Division, Strategic Air Command, History of the Strategic...1962 Favored for a mine near Cripple Creek, Colorado (west of the Cheyenne Mountain nuclear bunker started in 1961), the DUSC was to be 3500 feet deep and be "able to accommodate some 200 people for [30 days] to handle the large volume of data processing and analysis required for strike assessment, as well as follow-on strike and other decisions."