North American
Air Defense Boundaries


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  1. Region Operational Control Centres.
    Courtesy NBC Group.

  2. Long Range Radar Sites - Circa 1975.
    Courtesy NBC Group.

  3. Pinetree Line long range radar coverage for 28 active sites - Circa 1970.
    Note the marked absense (due to closures) of 16 other sites - as follows: Tofino, Comox, Puntzi Mountain, Pagwa, Edgar, Parent, St. Sylvestre, Beaverbank, Stephenville, St. Anthony, St. John's (Red Cliff), Cartwright, Hopedale, Saglek, Resolution Island and Frobisher Bay - all of which were closed between 1957 and 1970.
    Courtesy Bob Agar.

  4. 22NR Historical Summary - July through December 1969.
    Courtesy NBC Group.

  5. NNR Historical Summary - January through June 1969.
    Courtesy NBC Group.

  6. NORAD Boundaries - 1 April 1966.
    Courtesy NBC Group.

  7. NORAD Operational Regions - 1 November 1963.
    Courtesy NBC Group.

  8. NORAD Regional Boundaries - 1 October 1963.
    Courtesy NBC Group.

  9. NORAD Regional Boundaries - Pre 1 October 1963.
    Courtesy NBC Group.

  10. NSAWS Surveillance Map - 1 August 1962.
    Courtesy National Archives of Canada.

  11. NORAD Boundaries - 1 August 1959.
    Courtesy NBC Group.

  12. NORAD Boundaries - 30 June 1958.
    Courtesy NBC Group.

  13. NORAD Boundaries - 12 September 1957.
    Courtesy NBC Group.

  14. RCAF ADC Boundaries - Pre 12 September 1957.
    Courtesy NBC Group.

  15. Radar coverage by the Pinetree Line along the border and by the then proposed DEW Line in the north are shown on this map prepared by Air Defence Headquarters - 30 November 1955.
    Courtesy National Archives of Canada.


Map Credits

All maps are used with permission.


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Updated: November 27, 2000