Basin State Bank Address: 1716 W Main St, Lewistown, MT 59457 Phone: (406) 538-3301 Banks, Loans Other Businesses: Northwest Farm Credit Service at 120 Wunderlin St, Lewistown, MT 59457 WELLS FARGO BANK at 404 W BROADWAY ST, LEWISTOWN, MT 59457 First Bank of Montana at 224 W Main St, Lewistown, MT 59457 Bank Of The Rockies at 401 W Main St, Lewistown, MT 59457