Pinetree Line
USAF Gap Fillers



Click on the link below to view detail on the USAF Gap Filler Sites.
  1. USAF Gap Filler Sites by location - 1957-1961.
    Courtesy Assorted Sources.



    Click on the description text to view the article.

  2. Cancellation of Reservations - 18 December 1962
    Courtesy National Archives of Canada.

  3. Disposal of Land at Gap Filler Radar Sites - 8 May 1962
    Courtesy National Archives of Canada.

  4. Disposal of Gap Filler Radar Sites - 12 April 1962
    Courtesy National Archives of Canada.

  5. USAF Gap-Filler Sites - 6 April 1962
    Courtesy National Archives of Canada.

  6. Conveying and Receiving Orders-in-Council - 27 March 1962
    Courtesy National Archives of Canada.

  7. Takeover of Gap Filler Radar Sites - 19 March 1962
    Courtesy National Archives of Canada.

  8. Message regarding equipment disposal at the USAF Gap-Filler sites - 12 March 1962
    Courtesy National Archives of Canada.

  9. Takeover of Gap-Filler Sites - 19 March 1962
    Courtesy National Archives of Canada.

  10. Message regarding equipment disposal at the USAF Gap-Filler sites - 8 March 1962
    Courtesy National Archives of Canada.

  11. Disposal of Gap Filler Radar Sites - March 1962
    Courtesy National Archives of Canada.

  12. US Abandonment of Six Gap Filler Radars - 15 February 1962
    Courtesy National Archives of Canada.

  13. Inactivation of Radar Stations - 6 October 1961
    Courtesy National Archives of Canada.

  14. Handover of Six Gap Filler Radar Sites - 1 September 1961
    Courtesy National Archives of Canada.

  15. US Gap-Filler Sites in Newfoundland - 11 August 1961
    Courtesy National Archives of Canada.

  16. Crown Assets Disposal - 10 August 1961
    Courtesy National Archives of Canada.

  17. Discontinuance of Gap-Fillers - 7 August 1961
    Courtesy National Archives of Canada.

  18. Map showing radars to be discontinued - 7 August 1961
    Courtesy National Archives of Canada.

  19. Larger image of the map showing radars to be discontinued - 7 August 1961
    Courtesy National Archives of Canada.

  20. Meeting Regarding Phaseout - 23 June 1961.
    Courtesy National Archives of Canada.

  21. Proposal to Deactivate Certain Radars in the Northeastern Area - June 1961.
    Courtesy National Archives of Canada.

  22. Letter Regarding Closure of Gap Filler Radar Sites - 4 May 1961.
    Courtesy National Archives of Canada.

  23. Deactivation of Cartain Radar Stations - 2 May 1961.
    Courtesy National Archives of Canada.

  24. Deactivation of Certain Radar Stations - 11 April 1961.
    Courtesy National Archives of Canada.

  25. Deactivation of Certain Radar Stations - 10 April 1961.
    Courtesy National Archives of Canada.

  26. Deactivation of Certain Radar Stations - 6 April 1961.
    Courtesy National Archives of Canada.

  27. Note 546 - 1 April 1961.
    Courtesy National Archives of Canada.

  28. Inactivating Radars - February 1961
    Courtesy National Archives of Canada.

  29. Map depicting Pole Vault Communications between the USAF Gap Filler sites and their parent Pinetree Line radar stations - February 1961
    Courtesy Denniss Abbott.

  30. Message re Gap Filler Surveys, page 1 of 2 - 15 February 1957.
    Courtesy National Archives of Canada.

  31. Message re Gap Filler Surveys, page 2 of 2 - 15 February 1957.
    Courtesy National Archives of Canada.

  32. Operation Pillow - March 1956.
    Courtesy National Archives of Canada.

  33. Letter to Minister of National Defence - 2 December 1955.
    Courtesy National Archives of Canada.

  34. Letter to Premier of Newfoundland - 18 November 1955.
    Courtesy National Archives of Canada.

  35. Message re Location of USAF Gap Filler Sites - 27 September 1955.
    Courtesy National Archives of Canada.

  36. Message re Location of USAF Gap Filler Sites - 27 September 1955.
    Courtesy National Archives of Canada.

  37. Message re Location of USAF Gap Filler Sites - 27 September 1955.
    Courtesy National Archives of Canada.

  38. Construction of Gap Filler Radar Sites - 22 September 1955.
    Courtesy National Archives of Canada.

  39. Construction of Gap Filler Radar Sites - 16 August 1955.
    Courtesy National Archives of Canada.

  40. Construction of Gap Filler Radar Sites - 8 July 1955.
    Courtesy National Archives of Canada.

  41. Agreement for USAF Gap Fillers - 22 June 1955.
    Courtesy National Archives of Canada.

  42. Letter regarding USAF Gap Fillers - 13 June 1955.
    Courtesy National Archives of Canada.

  43. Letter regarding USAF Gap Fillers - 13 June 1955.
    Courtesy National Archives of Canada.

  44. Letter regarding USAF Gap Fillers - 13 June 1955.
    Courtesy National Archives of Canada.

  45. Additional Radar Stations on the Labrador Coast - 6 May 1955.
    Courtesy Department of Foreign Affairs and International Trade.

  46. Memorandum on Canada - US Agreements - May 1955.
    Courtesy National Archives of Canada.



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November 13, 2004