Eric Walker placed Cheyenne Mountain Complex under Colorado
Eric Walker added Cheyenne Mountain Complex - Wikipedia to Cheyenne Mountain Complex
Eric Walker added NORAD and The Cheyenne Mountain Complex - YouTube to Cheyenne Mountain Complex
Eric Walker updated the time prefix for Cheyenne Mountain Complex to be "1965"
Eric Walker updated the time prefix for Cheyenne Mountain Complex to be "2023"
Eric Walker added Cheyenne Mountain Complex to North American Aerospace Defense Command (NORAD)