Colville Air Force Station

Colville Air Force Station was one of twenty-eight stations built as part of the second segment of the Air Defense Command permanent radar network. Prompted by the start of the Korean War, on July 11, 1950, the Secretary of the Air Force asked the Secretary of Defense for approval to expedite construction of the permanent network. Receiving the Defense Secretary's approval on July 21, the Air Force directed the Corps of Engineers to proceed with construction. This site took over coverage once provided by the temporary "Lashup" site L-28, Spokane, Washington, which operated between 1950-1952.

The 760th Aircraft Control and Warning Squadron (AC&W Sq) was activated at the new station on 27 November 1950. The squadron began operating an AN/TPS-1B medium-range search radar in March 1951 at the then Lashup-Permanent site LP-60, and initially the station functioned as a Ground-Control Intercept (GCI) and warning station. As a GCI station, the squadron's role was to guide interceptor aircraft toward unidentified intruders picked up on the unit's radar scopes. In November 1951 an AN/TPS-1C replaced the -B model. This radar was subsequently replaced by an AN/FPS-3 long-range search radar and an AN/FPS-5 height-finder radar at this now Permanent site (P-60) in February 1952.

In 1956 the AN/FPS-5 height-finder radar was retired and replaced by an AN/FPS-6 model. Also in 1956 an AN/GPS-3 search radar was installed. In 1958 the 760th AC&W Sq operated a newly installed AN/FPS-20 radar, and the AN/FPS-3 radar was retired. An AN/FPS-6A height-finder was added also in 1958. In 1960 the AN/FPS-20 was modified to the AN/FPS-20A model. During 1960 Colville AFS joined the Semi Automatic Ground Environment (SAGE) system, initially feeding data to DC-15 at Larson AFB, Washington. After joining, the squadron was redesignated as the 760th Radar Squadron (SAGE) on 15 July 1960. The radar squadron provided information 24/7 the SAGE Direction Center where it was analyzed to determine range, direction altitude speed and whether or not aircraft were friendly or hostile.

In addition to the main facility, Colville operated several AN/FPS-14 Gap Filler sites:

• Ione, WA (P-60A) 48°32′43″N 117°09′21″W
• Northport, WA (P-60B) 48°54′32″N 117°52′08″W
• Curlew AFS, WA (P-60C) 48°52′38″N 118°47′08″W
• Okanogan, WA (P-60D) 48°31′41″N 119°56′33″W
• Mazama, WA (P-60E) 48°44′30″N 120°40′50″W

In November 1960 this site was closed due to budget constraints. Today the site remains standing, abandoned and severely deteriorated.

• List of USAF Aerospace Defense Command General Surveillance Radar Stations

 This article incorporates public domain material from the Air Force Historical Research Agency website http://www.afhra.af.mil/.

• Cornett, Lloyd H. and Johnson, Mildred W., A Handbook of Aerospace Defense Organization 1946 - 1980, Office of History, Aerospace Defense Center, Peterson AFB, CO (1980).
• Winkler, David F. & Webster, Julie L., Searching the Skies, The Legacy of the United States Cold War Defense Radar Program, US Army Construction Engineering Research Laboratories, Champaign, IL (1997).
• Information for Colville AFS, WA