DCHP-1 Online
Pinetree Line 
a coast-to-coast system of radar stations across southern Canada, equipped to detect and warn of approaching aircraft or missiles.
- 1956 At 13 stations in eight provinces along Canada's coast to coast Pinetree Line, reservists . . . stood ready to scramble aircraft aloft to intercept any unidentified planes that turned up on the screens.
- 1963 It will be one of five Western Canada sites of the Pinetree line . . . which will become operational at the same time.
- 1956 At 13 stations in eight provinces along Canada's coast to coast Pinetree Line, reservists . . . stood ready to scramble aircraft aloft to intercept any unidentified planes that turned up on the screens.