Big Horn County Of - Hardin--sheriff Hardin, MT 59034 Phone : (406) 665-9780 Business Category Government Offices-County Government Offices & Public Schools Hardin City Of--police 406 N Cheyenne Ave Hardin, MT 59034 Phone : (406) 665-9780 Business Category Government Offices-City Village & Twp Police Departments Government Offices State & Local Government Offices & Public Schools Big Horn County Of--sheriffs Office 121 3rd St W Hardin, MT 59034 Phone : (406) 665-9780 Business Category Government Offices-County Sheriff Government Offices & Public Schools