First Interstate Bank Columbus Main Branch ← View details 36 North 9th Street, Columbus, MT 59019 +1 406-322-4731 firstinterstatebank.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 08:30 am — 05:00 pm Tuesday: 08:30 am — 05:00 pm Wednesday: 08:30 am — 05:00 pm Thursday: 08:30 am — 05:00 pm Friday: 08:30 am — 05:00 pm Your comments * — Required information