RCAF Scarborough Bluffs
Scarborough isn’t known to many as a former industrial or military hotbed, but rather as a suburb onto itself just east of Toronto. Apart from light industry, malls and sub divisions and projects dotting the landscape you would have not otherwise known that the RCAF built a testing facility along the Scarborough Bluffs which was an ideal location because of it’s high cliffs and proximity to the water. A single brick building was built (details omitted) right on the bluffs themselves where a coastal radar device was developed. The radar was known as a Microwave Early Warning/Anti-Submarine system, and after the radar device was developed the RCAF turned the building into a school, which is actually what it looks like at first glance if you happen to pass by it today.
The No.1 radio direction finding school opened it’s doors in June 1942 and trained both British and American airman and signal corps. It changed it’s name to No.1 radar school in December 1943 and operated for three months when everything was moved to the much larger radar school in Clinton, Ontario. If if isn’t already apparent, it’s amazing to see such grand waste at the hands of military during (and after the war). In 1946 the building was given to the National Research Council’s radio branch where similar work continued on experimental radar development. The site was also home to the department of transport’s radiosonde training unit as well as the National radiation Atmospheric Center. In the early 1950′s the building was also shared with the RCAF No. 5 aircraft control and warning unit ( No.5 AC&WU) until October 1951 when that was moved to RCAF Edgar where the 31 Aircraft control and warning squadron was re-located, near CFB Borden. The RCAF’s No. 271 Air Defense Control was also located here along with the 2400 Aircraft control and warning unit, No.1 Anti-Aircraft operations room, No.2 and the 206 companies of the Royal Canadian Electrical and Mechanical Engineers.
The building is now used by the City of Toronto (Scarborough became amalgamated in 1998) and the only part that remains accessible (if you like walking along the bluffs to access it – I don’t recommend it) is an underground shelter that seems to have been used as a grow-op at some point. It’s hollow, and further levels exist suggested by air vents and the large flat, open space behind the main building. None of the historical documents I found make reference to what the space could have been used for but it is located near the shore, and could have been used as a stop over between Camp X (entry at some later point) and Toronto for POW’s. That’s pure speculation, but no other reasonable hypothesis was found to explain the presence of this bunker room that is far too close to the surface to have been used as an air raid shelter, out in the open.
Photos by Kathy.












