Canadian Forces Station Senneterre:
Opened as Royal Canadian Air Force Station Senneterre on 1 June 1953, the home of No. 34 Aircraft Control & Warning Squadron, one of Canada’s Pinetree Line radar stations.
After the closure of CFS Val d’Or in 1976, CFS Senneterre took over Search and Rescue operations for Quebec’s northwestern region.
In 1985, DND announced that the Pinetree Line would be shut down as a part of the North American Air Defence Modernization Plan. As a result, CFS Senneterre closed on 1 August 1988.
Most of the buildings remain today. The operations building was demolished after a fire in the early 1990s. The height finder radar tower was demolished, but the other 2 radar towers remain.
Additional Source Material: DND Press Releases from June 1989.
- Front of the Headquarters building, 1965. Photo: John Hart.
- John Hart’s room in the Sergeants’ barracks, 1965. Photo: John Hart.
- Officers’ Mess with the Operations Centre in the background, 1965. Photo: John Hart.
- Winter parade and competitions between the messes, 1965. Photo: John Hart.
- Winter parade and competitions between the messes, 1965. Photo: John Hart.
- Winter parade and competitions between the messes, 1965. Photo: John Hart.
- Winter parade and competitions between the messes, 1965. Photo: John Hart.
- Winter parade and competitions between the messes, 1965. Photo: John Hart.
- View of the Operations Centre with the 3 radomes. Photo: Unknown.
- PMQs, Photo: Google Maps.
- PMQs, Photo: Google Maps.
- Photo: Google Maps.
- PMQs, Photo: Google Maps.
- PMQs at the main gate, Photo: Google Maps.
- Headquarters building, now a Photo: Google Maps.
- School. Photo: Google Maps.
- Photo: Google Maps.
- Recreation Centre. Photo: Google Maps.
- MSE section. Photo: Google Maps.
- CE section. Photo: Google Maps.
- Photo: Google Maps.
- Combined Mess. Photo: Google Maps.
- Barracks. Photo: Google Maps.
- Barracks. Photo: Google Maps.
- Barracks. Photo: Google Maps.
- Operations site. Photo: Google Maps.
- Operations site. Photo: Google Maps.
- Operations site. Photo: Google Maps.
Canadian Forces Station Mont Apica:
Opened in 1952 as RCAF Station Mont Apica, with the radar functions being run by No. 201 Radio Station. No. 201 Radio Station was itself re-named No. 12 Aircraft Control & Warning Squadron. Part of the Station’s role was as a control centre for the fighter squadrons of Air Defence Command and a long-range radar station.
In 1963, the Intercept Controller School was established at the station, remaining until disbanding in 1969.
Technological changes made the station redundant and it closed in 1990. No. 12 Radar Squadron maintained the radars at the station, providing radar tracking for fighter aircrew training re-located to CFB Bagotville, until 1993, when it re-located to Bagotville.
Nothing remains of CFS Mont Apica today. The property now features the Belvédère du Mont-Apica, a small observation post-style structure that allows visitors to the remote location to take advantage of the spectacular view.
Additional Source Material: DND press release from May 1989 & July 1989, 12 Radar Squadron | Royal Canadian Air Force (forces.gc.ca).
- Mural of RCAF Station Mont Apica.
- Belvédère du Mont-Apica, the small observation where the Operations Building once stood, January 2021, Photo: Pascal LT.
- Station Map.
- Aerial view of the Operations site, November 1974. Photo: ADC Museum.
- Chapel and PMQs, June 1969. Photo: Eric Sproule.
Canadian Forces Station Chibougamau:
Opened on 1 May 1962 as RCAF Station Chibougamau, with the radar functions being run by No. 10 Aircraft Control & Warning Squadron, a Ground-Control Intercept unit with the job of directing fighter interceptors to oncoming enemy bombers. Chibougamau differed in layout in that while station headquarters and the domestic area was in the town proper, the operations site was some distance away a few miles north on a mountain-top.
The operating unit was re-designated 10 Radar Squadron in 1963 upon its automation.
The station was re-named CFS Chibougamau in 1968 as a result of the Unification.
In 1985, DND announced that the Pinetree Line would be shut down as a part of the North American Air Defence Modernization Plan. As a result, CFS Chibougamau closed 1 April 1988.
Most of the former station remains, with parts being used by the City of Chibougamau. The former PMQ area is now a golf course and the Officers’ Mess serves as the clubhouse.
The operations building was used briefly by Transport Canada, but was demolished in 1993.
- Aerial photo of Operations site, August 1979. Photo DND.
- CFS Chibougamau sign, February 1979. Photo Jim Compton.
- Aerial photo of RCAF Station domestic site, 1963. Photo Larry Wilson.
- Recreation Center, March 1969. Photo Ross Grieve.
- Former PMQ area, now a golf course, 2004. The building on the right was the Officer’s Mess. Radar Hill is in the distant background behind the trees. Photo Romeo Morin.
- The entrance of the 19th hole, formerly the Officers’ Mess, 2004. Photo Romeo Morin.
- What’s left of the former station. Photo: Google Maps.
Royal Canadian Air Force Station St Sylvester:
Opened in 1953 as RCAF Station Ste.-Marie, with the radar functions being run by No. 206 RCAF Radio Station. The radar unit was later re-named No. 13 Aircraft Control & Warning Squadron. The station itself was later re-named RCAF Station St.-Sylvestre.
Continued upgrades in radar equipment lead to greater coverage areas for Pinetree stations. As a result, stations like RCAF Station St.-Sylvestre were now deemed unnecessary as neighboring RCAF Stations were now able to cover St.-Sylvestre’s area of responsibility. As a result, St.-Sylvestre closed in 1964.
All that remains of RCAF Station St.-Sylvestre today is the operation centre, one radar tower and the recreation centre.
The former station is now owned by Radar Domaine, an outdoor recreational tourism centre dedicated to providing a range of year-round activities and events for outdoor enthusiasts.
Additional source: Radar Domaine – www.domaineduradar.com
- Aerial photo of the remains of St. Sylvestre, September 2002. Photo: Tom Page.
- Aerial photo of the remains of the Operations site, September 2002. Photo: Tom Page.
- The former RCAF Station St.-Sylvestre now owned by Radar Domaine. Photo: Google Maps.
Canadian Forces Station Lac St Denis:
Opened in 1952 as RCAF Station Lac St Denis, with the radar functions being run by No. 201 RCAF Radio Unit, later re-designated No. 11 AC & W Squadron. At the same time, 1 AC&W Squadron was re-designated 1 Air Defence Control Centre and remained as such until its disbandment, as the Montreal NORAD Sector, on 15 September 1962.
The station became SAGE capable on 15 September 1962 and began to report to the Bangor Sector at Topsham AFS, Maine. In September 1963, 11 AC&W began reporting to the Ottawa Sector at CFB North Bay. At one time a detachment of 1 Radar and Communications School RCAF Station Clinton Ontario were training enlisted personnel as Fighter Control Operators at the station. In September 1965, a new basic trade school to train Air Defence Technicians was formed to meet the forecast trade shortage. By 1973, over 25 courses had been run with almost 500 graduates.
11 AC&W was the operation responsible for the control of all test flights of the CF-104 Starfighters being built at Canadair in Montreal. The aircraft would leave the Cartierville Airport and proceed to the testing area under positive control of Lac St. Denis.
With the Unification of the Forces, the station was re-named CFS Lac St. Denis.
In March 1972, CFS Lac St. Denis became a detachment of the North Bay based Air Weapons Control and Countermeasures School (AWC&CS). Eventually Lac St. Denis acquired the Air Weapons Control and Countermeasures School and they carried on training Air Defence Technicians for two more years. The school was later moved to CFB Falconbridge and then to its current location at North Bay, Ontario.
The Canadian NORAD Region’s ROCCs, both Canada East and Canada West, commenced operations in August 1984, with Lac St. Denis attached to Canada East.
The station ceased operations in December 1985 and finally closed on 1 August 1986.
Various business have occupied the site without ever achieving any long-term success, including transforming the former operations building into a medieval castle-themed restaurant called “Chateau Medieval Sire d’Howard (le)” (“The Medieval Castle of Sir Howard’).
The operations site is now abandoned. All that remains is the abandoned and crumbling operations building, the concrete bases of the radar towers.
The PMQs are all that remain in the domestic area, some extensively remodeled, and are now private residences. Some of the other buildings remain, including one of the airmens’ barracks has been extensively remodeled into apartments, called St-Adolphe Manor, the airwomens’ barracks, which is now a music school, L’Ecole de musique des Laurentides, and the Headquarters building, which is now offices for a mini-storage facility. Systemes Action Air, an HVSC company, occupies the former chapel.
Interesting fact: “Airwomen were being phased out of Lac St. Denis in September 1962. At the beginning of the month, there were were 126 Airwomen on strength and by the 15th of September all of them had departed. Prior to leaving, they had a parade, and following the parade, they presented the Station with a bronze plaque to be mounted at the entrance of the Station. They also donated an “Airman of the Year Trophy” to the Station. When Lac St. Denis was closed out (in 1986), LCol Doris Toole (who was Acting Director of Women Personnel at NDHQ in the mid 1980s) made arrangements for the plaque to go to the RCAF Museum in Trenton, and it is still there to this date.” Details courtesy of Penny King.
Source material: the personal recollections of the author (2004).
- Ceremony marking the departure of Airwomen from Lac St. Denis. (L-R) FS LA Desjardins, SWO; F/L ME Vaughn, PAdO; W/C LP Dupuis, CO; and Cpl. Anne Harrison who presented the plaque to the station on behalf of the Airwomen, 15 September 1962. Photo: Anne Harrison.
- RCAF Police Corporal Thomas Spowart in front of the AFP guardhouse, June 1962. Photo: Thomas Spowart collection.
- Sign at the entrance to the station, September 1978. Photo: Jim Compton.
- Station school, with the operations centre on the hill in the background, September 1978. Photo: Jim Compton.
- Aerial photo of the Lac St Denis station, October 1974. Photo: ADC Museum.
- The MIR building seen from the Operations building, September 2001. Photo: Claude Poissant.
- The Operations building modified to look like a middle age castle, October 2001. Photo: Claude Poissant.
- Former Airwomens’ barracks, now a music school, September 2000. Photo: Ron Guy.
- Former school location, June 2009. Photo: Google Maps.
- Foundation of the firehall, June 2009. Photo: Google Maps.
- Foundation of the firehall, June 2009. Photo: Google Maps.
- Station Headquarters, September 2015. Photo: Bruce Forsyth.
- Station HQ, before remodelling, August 2000. Photo: Bob Agar.
- Road to the Operations site, September 2015. Photo: Bruce Forsyth.
- The Operations building, September 2015. Photo: Bruce Forsyth.
- Interior of the Operations building, September 2015. Photo: Bruce Forsyth.
- Interior of the Operations building, September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
- Rear of the Operations building with the concrete base of on of the radar towers, September 2015. Photo: Bruce Forsyth.
- Interior of the base of the radar tower, September 2015. Photo: Bruce Forsyth.
- The Operations building September 2015. Photo: Bruce Forsyth.
- Top of the base of the radar tower, September 2015. Photo: Bruce Forsyth.
- Entrance to the Operations area, September 2015. Photo: Bruce Forsyth.
- PMQs with Lac St. Denis in the background, September 2015. Photo: Bruce Forsyth.
- Upgraded PMQ at the former RCAF Station Lac St. Denis, September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
- September 2015. Photo: Bruce Forsyth.
Canadian Forces Station Moisie:
Opened in 1953 as RCAF Station Moisie with the radar functions being run by No. 211 Aircraft Control & Warning Squadron.
The station was re-named CFS Moisie in 1968.
CFS Moisie closed on 1 April 1986 and the property was sold.
The PMQs remain, as do some of the station’s buildings, but the main operations site was demolished in the 1980s.
- CFS Moisie, 1980. Photo: Sentinel magazine.
- CFS Moisie, 1980. Photo: Sentinel magazine.
- Main entrance to the station, 13 September 2003. Photo: Paul André Beaulieu.
- Some of the original “Steelock” PMQs, among the around 40 that once housed service members and their families, 13 September 2003. Photo: Paul André Beaulieu.
- Barracks, 13 September 2003. Photo: Paul André Beaulieu.
- Station Chapel, 13 September 2003. Photo: Paul André Beaulieu.
- MSE garage, with barracks in background, 13 September 2003. Photo: Paul André Beaulieu.
- CANEX, 13 September 2003. Photo: Paul André Beaulieu.
- CANEX interior, 13 September 2003. Photo: Paul André Beaulieu.
- Curling rink, 13 September 2003. Photo: Paul André Beaulieu.
- Headquarters building, 13 September 2003. Photo: Paul André Beaulieu.
- Remains of the Recreation Centre/Base Theatre, 13 September 2003. Photo: Paul André Beaulieu.
- Former station MIR, 13 September 2003. Photo: Paul André Beaulieu.
- Main Gate, July 1991. Photo: Romeo Morin.
- Mens’ barracks, July 1991. Photo: Romeo Morin.
- Fire Hall, July 1991. Photo: Romeo Morin.
- PMQs on Ungava Street, July 1991. Photo: Romeo Morin.
Royal Canadian Air Force Station Parent:
Opened in 1953, with radar functions being run by No. 207 RCAF Radio Station. This was one of the last Pinetree stations to be built. The radar unit was later re-designated 14 Aircraft Control & Warning Squadron.
Continued upgrades in radar equipment lead to greater coverage areas for Pinetree stations. As a result, stations like RCAF Station Parent were now deemed unnecessary as neighboring RCAF Stations were now able to cover Parent’s area of responsibility. As a result, Parent closed in 1964.
Only the PMQs remain today, some still inhabited, but none of the other buildings remain; only the foundations of the demolished buildings.
All that remains of the operational site are the foundations and paved parking lot at the top of the mountain. A communications antenna now occupies the site.









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