Armory National Guard Po Box 6929 Harlowton, MT 59036 Phone : (406) 632-4612 Business Category National Security State Of Montana--military Affairs Dept Of, Army National Guard, Armory Harlowton, MT 59036 Phone : (406) 632-4612 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Montana State Of--armory National Guard Harlowton, MT 59036 Phone : (406) 632-4612 Business Category Government Offices-State Government Offices State & Local National Security Government Offices & Public Schools