U.S. Army Depot, Safeguard
The U.S. Army Depot, Safeguard, was a subordinate command of Safeguard Logistics Command (SAFLOG). Located at Glasgow Air Force Base, Montana, it was assigned the mission of providing supply and maintenance support (except for nuclear munitions, ancillary equipment, or COMSEC design controlled secondary items) to tactical Safeguard units under the guidance and direction of SAFLOG.
The SAFLOG Historical Summary, Fiscal Year 1972
contains a chapter on the U.S. Army Depot, Safeguard, including a map of the facilities on Glasgow AFB. Unfortunately, it's missing a few pages. PDF document 358k