Yellowstone Bank ← View details 120 2nd Street Northwest, Sidney, MT 59270 +1 406-433-3212 yellowstonebank.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 03:00 pm Tuesday: 09:00 am — 03:00 pm Wednesday: 09:00 am — 03:00 pm Thursday: 09:00 am — 03:00 pm Friday: 09:00 am — 04:00 pm Your comments * — Required information