Advertisement
Canada markets closed
  • S&P/TSX

    21,969.24
    +83.86 (+0.38%)
     
  • S&P 500

    5,099.96
    +51.54 (+1.02%)
     
  • DOW

    38,239.66
    +153.86 (+0.40%)
     
  • CAD/USD

    0.7317
    -0.0006 (-0.09%)
     
  • CRUDE OIL

    83.68
    +0.11 (+0.13%)
     
  • Bitcoin CAD

    87,357.50
    -1,296.50 (-1.46%)
     
  • CMC Crypto 200

    1,330.91
    -65.62 (-4.70%)
     
  • GOLD FUTURES

    2,349.10
    +6.60 (+0.28%)
     
  • RUSSELL 2000

    2,002.00
    +20.88 (+1.05%)
     
  • 10-Yr Bond

    4.6690
    -0.0370 (-0.79%)
     
  • NASDAQ

    15,927.90
    +316.14 (+2.03%)
     
  • VOLATILITY

    15.03
    -0.34 (-2.21%)
     
  • FTSE

    8,139.83
    +60.97 (+0.75%)
     
  • NIKKEI 225

    37,934.76
    +306.28 (+0.81%)
     
  • CAD/EUR

    0.6840
    +0.0019 (+0.28%)
     

Construction of NORAD Air Defense Command


North American Air Defense Command underground Combat Operations Center is a Nuclear War hardened installation near Colorado Springs, Colorado. The installation takes up about 5 acres, tunneled into part of the Cheyenne Mountain massif, and was designed for a 30 megaton nuclear explosion within 1.2 mile radius. The excavation work for the construction started in 1962, and full operational capability was achieved in July, 1966.