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Natsios Young Architects

17 June 2002
Source of maps and photos: (color) and TerraServer USGS 23 Jun 1994 (monochrome).

Warren Air Force Base:

From the report Taking Stock: Worldwide Nuclear Deployments 1998, by William M. Arkin, Robert S. Norris and Joshua Handler, published in March 1998 by the Natural Resources Defence Council.

Rank: No. 6

Nuclear Warheads: 592

F.E. Warren

WYOMING ranks 6th in number of nuclear warheads deployed, a rise from 10th in 1992 and 19th in 1985. But the number of warheads in the state has remained virtually unchanged. F.E. Warren AFB in Cheyenne is the only nuclear storage site, hosting both Minuteman III and MX ICBMs (one of four–soon to be three–Minuteman III bases, and the only MX base). The missiles are assigned to the 90th Space Wing (formerly Missile Wing) of the 20th Air Force, Air Force Space Command, with three squadrons (319th, 320th, 321st) for the Minuteman III and the 400th Missile Squadron (MX). The Wing’s 200 missile silos are spread out over 12,600 square miles in eastern Wyoming, northern Colorado and western Nebraska; 19 Minuteman III silos and 50 MX silos are physically located in Wyoming. The warheads for the missiles are 57 W62/Minuteman IIIs (plus 10 spares) and 525 W87/MXs.

The 90th Missile Wing received a comprehensive NSI on June 4 to 11, 1993 and was rated “satisfactory,” the equivalent of a failing grade in nuclear certification. Problems were identified in the areas of Nuclear Control Order procedures, facilities, and communications hardware maintenance, all rated “marginal.” The marginal rating for Nuclear Control Order procedures resulted from failed inspections performed on the missile combat crews with the Missile Procedures Trainer. One crew opened the wrong positive control document and another performed an unauthorized launch of an ICBM. A Nuclear Surety Inspection (NSI) was conducted of the 90th Wing in March 1997.

Warren has had a long history with ballistic missiles. There were 15 Atlas D ICBMs deployed, all in Wyoming in the early 1960s as were nine Atlas Es, three in Wyoming, five in Colorado and one in Nebraska. Soon after there were 200 Minuteman I silos which were converted to Minuteman IIIs in 1975. In 1986 50 of the Minuteman III silos were used to house 50 MX missiles.


Warren WSA Coordinates:

41N 08' 30", 104W 52' 46"

4,554,500.0, 510,100.0