Simply Service Federal Credit Union ← View details 1842 5th Avenue, Belle Fourche, SD 57717 +1 605-892-4631 simplyservicefcu.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 — 06:00 pm Saturday: 08:30 am — 12:00 pm Your comments * — Required information