Lashup Radar Network site L-6 was established in June 1950[5] at the Pine Camp military installation (renamed Fort Drum in 1951)[6] and operated by the 655th Aircraft Control and Warning Squadron using an RCA AN/TPS-10A Radar. After construction adjacent to Fort Drum in June 1952, the operation moved to the Air Force Station, one of the first twenty-four Air Defense Command radar stations of the permanent network established 1950-1951 after the USAF directed construction of the sites on December 2, 1948.[citation needed] Watertown AFS used AN/FPS-3 and AN/FPS-5 radars for warning and ground-controlled interception. In 1958 this site was operating with AN/FPS-20 search radar and General Electric AN/FPS-6 Radar for height-finding.