River City Sports Share: Watercraft River City Sports Visit Website 3751 E Rosser Ave. Bismarck, ND 58501-3307 (701) 223-9003 (701) 223-9042 (fax) Hours: 8AM-6PM Monday thru Friday. Saturday 9AM-4PM. Closed Sunday About Rep Info Map About Marine retail and service dealership. New and used boats, Bennche ATV's and Ice Castle Ice Houses. Whom to Contact Larry Haisley What's Nearby? Distance: 5 10 15 20 25 50 mi.