First Interstate Bank Miles City Main Branch ← View details 1115 Main Street, Miles City, MT 59301 +1 406-232-5590 firstinterstatebank.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 08:30 am — 03:00 pm Tuesday: 08:30 am — 03:00 pm Wednesday: 08:30 am — 03:00 pm Thursday: 08:30 am — 03:00 pm Friday: 08:30 am — 05:30 pm Your comments * — Required information