Ravalli County Federal Credit Union Address: 501 N 1st St, Hamilton, MT 59840 Phone: (406) 363-4631 Banks, Mortgages, Loans, Credit Unions, Federally Chartered Credit Unions Other Businesses: Opportunity Bank of Montana at 711 S 1st St, Hamilton, MT 59840 First Security Bank at 100 W Main St, Hamilton, MT 59840 Ravalli County Bank at 225 W Main St, Hamilton, MT 59840 Ravalli County Bank at 224 Pinckney St, Hamilton, MT 59840