Saint Albans Air Force Station (AFS) was selected as one of the first of twenty-four Air Defense Command stations of the permanent United States surveillance radar network. On December 2, 1948, the Air Force directed the Army Corps of Engineers to proceed with construction of this and the other twenty-three sites. In addition to the main facility, Saint Albans operated two unmanned AN/FPS-18 Gap Filler sites: * Blue Mountain Lake, NY (P-14B) * Bangor, NY (P-14C) Blue Mountain was closed in December 1967 and Bangor in June 1968