Stephenville Air Station (ADC ID: N-23) is a closed General Surveillance Radar station. It is located north-northwest of Stephenville, Newfoundland and Labrador, Canada. It was closed in 1971.

History The site was established in 1951 as a General Surveillance Radar station, built by the United States Air Force as part of the Pinetree Line of Ground-Control Intercept (GCI) radar sites.

USAF units and assignments Units: 640th Aircraft Control and Warning Squadron

Assignments: 64th Air Division (NEAC), 1 September 1951 4731st Air Defense Group (ADC), 1 November 1957 Goose Air Defense Sector, 6 June 1960 37th Air Division, 1 April 1966 21st Air Division, 31 March 1970 – 30 June 1971

See also List of USAF Aerospace Defense Command General Surveillance Radar Stations

References

A Handbook of Aerospace Defense Organization 1946 - 1980, by Lloyd H. Cornett and Mildred W. Johnson, Office of History, Aerospace Defense Center, Peterson Air Force Base, Colorado Winkler, David F. (1997), Searching the skies: the legacy of the United States Cold War defense radar program. Prepared for United States Air Force Headquarters Air Combat Command.