Constructed during World War II, this facility was built to serve as an ammunition and material storage and shipping center. During the late 1950s, Pueblo became a major Army missile repair and maintenance facility. The facility operated at nearly full capacity during the Vietnam era.
Although the Army eliminated most of the facility's missile maintenance responsibilities in 1975, Pueblo continued to support the Pershing missile system. At the time of the signing of the Treaty between the United States of America and the Union of Soviet Socialist Republics on the Elimination of the Intermediate-Range and Shorter-Range Missiles (INF Treaty) on December 8, 1987, 111 Pershing II missiles and 169 Pershing IA missiles were stored at this facility. Eventually these Pershing missiles were
destroyed at this facility and at Longhorn Army Ammunition Plant in Texas to comply with the INF Treaty to eliminate intermediate-range missiles from the United States and former Soviet arsenals.
Pueblo's primary mission in the 1990s became the storage of chemical munitions.