In the early 1950s the Pinetree Line network of radar stations was established. This line, which stretched along the 50th parallel, down the eastern coast and into southern Ontario and Quebec, acted as an early warning detection system against a Soviet air attack. The Pinetree Line was shut down in the mid 1980s as part of the North American Air Defence Modernization Plan.
For the full history of the following former Pinetree Radar stations, visit the Ren L’Ecuyer’s Pinetree Line web site – http://126.96.36.199:84/Pinetreeline/homepage.html or Larry Wilson’s Radar Tech Page – http://www.lswilson.ca/page5.htm.
or read “Abandoned Military Installations of Canada Volume I: Ontario”, “Abandoned Military Installations of Canada Volume II: Quebec” and “Abandoned Military Installations of Canada Volume III: Atlantic by Author Paul Ozorak.
The source material that I used is from the above sources and any others listed in the individual entry.
Unless indicated, no military presence remains at the former Pinetree Stations.