Great Western Bank Address: 816 Summer Ave, Riverton, IA 51650 Phone: (712) 387-2131 Hours: Mon: 9am-12pm Tue: 9am-12pm Wed: 9am-12pm Thu: 9am-12pm Fri: 9am-12pm Sat: 9am-12pm Banks, E Commerce Other Businesses: Riverside Inn at 901 Summer Ave, Riverton, IA 51650 Water Fowl Cafe at 200 K St, Riverton, IA 51650