321st Engineer Battalion U.S. Army
Subordinate units
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Gowen Field Air National Guard Base | Boise, Idaho, United States
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Fairchild Air Force Base Armed Forces Reserve Center | Fairchild AFB , Spokane, Washington
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Missoula, Montana, United States
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Frank M. Browning United States Army Reserve Center | Ogden, Utah
65th Engr Bn
301st MEB
HHC
494th BSB
Co A
Co B
FSC
305th Engr Co
476th CM Bn
349th CM Co
671st Engr Co