Air Defense Radar Stations

Information for Ajo AFS, Luke-Williams Range, AZ

Latitude: 32-25-52 N, Longitude: 112-56-42 W

Perm ID Sage ID JSS ID Unit Location Early
TM-181 Z-181   612 Ajo AFS, Luke-Williams Range, AZ FPS-20; FPS-7C; FPS-6A; FPS-26 FPS-7C; FPS-6A; FPS-26 1959 31-Dec-69 Site located on top of Childs Mountain, about 3 miles north of town. A new ARSR-4 has been constructed at the original Ajo Air Force Station site.
M-92B, TM-181B Z-181B     Covered Wells, AZ FPS-18   Dec-59 Dec-60 Gap-Filler Annex. Also known as Quijotoa. Building is still extant. Located adjacent to SR 86 (on south side), about 12 miles west of town.
TM-181A; SM-162B       Horn, AZ ** (FPS-14 first planned, then FPS-18)       Gap-Filler Annex. ** In early ADC plans, but never was built. FUDS report exists, though, suggesting that land might have been procured. Might have been used as a relay station (?). 1955 CONAD History document lists site as SM162B.

Current Use: ARSR-4 JSS radar site, and comm site for Barry M. Goldwater USAF Range (formerly known as Luke-Williams Range). Site also hosts an Air Combat Maneuvering Instrumentation (ACMI) antenna on top of old AN/FPS-26 radar tower.

Some photos and documents may be marked with varying degrees of classification, up to SECRET. Data so marked is the way it was delivered from official USAF sources, and have been completely declassified. To the best of our knowledge, no currently classified data is stored on this site.
The following site information is available: