Hardin City Of--water Office/ Deputy Clerk Hardin, MT 59034 Phone : (406) 665-9291 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools Hardn City Utilities 406 N Cheyenne Ave Hardin, MT 59034 Phone : (406) 665-9291 Business Category Government Offices-City Village & Twp Government Offices State & Local Regulation & Admin Of Communications Electric Gas & Other Utilities Government Offices & Public Schools