Empire Air Force Station is a former United States Air Force Aerospace Defense Command (ADC) long range radar site located 0.7 miles (1.1 km) south-southeast of Empire, Michigan, in Empire Township. It was closed in 1978 by the Air Force, and turned over to the Federal Aviation Administration (FAA).
The 20th Air Division is an inactive United States Air Force organization. Its last assignment was with Tactical Air Command at Tyndall Air Force Base, Florida where it was inactivated on 1 March 1983.
The 37th Air Division is an inactive United States Air Force organization. Its last assignment was with Air Defense Command at Goose Air Force Base, Labrador, Canada It was inactivated on 30 June 1970.
Canadian Forces Station Lowther is a closed General Surveillance Radar station. It is located 12.7 miles (20.4 km) east-southeast of Mattice-Val Côté, Ontario. It was closed in 1987.
The Southwest Air Defense Sector (SWADS) is an inactive United States Air Force organization. Its last assignment was with the First Air Force, being stationed at March Air Force Base, California. It was inactivated on 31 December 1994.
Tonopah Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 1.1 miles (1.8 km) south of Tonopah, Nevada. It was closed in 1970.
The Sault Sainte Marie Air Defense Sector (SsmADS) is an inactive United States Air Force organization. Its last assignment was with the 30th Air Division, being stationed at K.I. Sawyer Air Force Base, Michigan.
Antigo Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 7.5 miles (12.1 km) south-southwest of Antigo, Wisconsin. It was closed in 1977 and is currently classified as a high risk toxic waste site involving groundwater, sediment, soil and surface water.
Calumet Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 5.2 miles (8.4 km) east-northeast of Phoenix, Michigan. It was closed in 1988 by the Air Force, and turned over to the Federal Aviation Administration (FAA).
Bedford Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 12.7 miles (20.4 km) north of Bedford, Virginia. It was closed in 1975.
Kirksville Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 7.1 miles (11.4 km) north of Kirksville, Missouri. It was closed by the Air Force in 1968. Today the radar site is used by the Federal Aviation Administration (FAA) as a Joint Surveillance System (JSS) site.
Custer Air Force Station is a closed United States Air Force General Surveillance Radar and Direction Center station. It is located 5.3 miles (8.5 km) west-northwest of Battle Creek, Michigan. It was closed in 1969.
Grand Marais Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 0.5 miles (0.80 km) south of Grand Marais, Michigan. It was closed in 1957.
Grand Rapids Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 0.7 miles (1.1 km) east-northeast of Grand Rapids, Minnesota. It was closed in 1963.
Wadena Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 0.2 miles (0.32 km) north-northeast of Wadena, Minnesota. It was closed in 1970.
Gettysburg Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 2.6 miles (4.2 km) north of Gettysburg, South Dakota. It was closed in 1968.
The 697th Aircraft Control and Warning Squadron is an inactive United States Air Force unit. It was last assigned to the Oklahoma City Air Defense Sector, Aerospace Defense Command, stationed at Pyote Air Force Station, Texas. It was inactivated on 1 August 1963.
Mica Peak Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 6.3 miles (10.1 km) east-northeast of Mica, Washington. It was closed in 1975 by the Air Force, and turned over to the Federal Aviation Administration (FAA).
The 913th Aircraft Control and Warning Squadron is an inactive United States Air Force unit. It was last assigned to the Sault Sainte Marie Air Defense Sector, Air Defense Command, stationed at Pagwa Air Station, Ontario, Canada. It was inactivated on 1 June 1963.
The 912th Aircraft Control and Warning Squadron is an inactive United States Air Force unit. It was last assigned to the Sault Sainte Marie Air Defense Sector, Air Defense Command, stationed at Ramore Air Station, Ontario, Canada. It was inactivated on 1 January 1962.
United States Air Force 
