4th Avenue South in Mason City, IA 50401

4th Avenue South in Mason City, IA 50401 (Cerro Gordo County) is a secondary road (Road number CR B35). It runs in an east-west direction starting from South Shore Drive and crosses South 3rd Street, South 8th Street, South 9th Street, South 10th Street, South 12th Street, South 17th Street, South 20th Street, South 24th Street, Indigo Avenue, South 56th Street and Killdeer Avenue. It ends in a cul-de-sac and connects Clear Lake and Cerro Gordo County. 4th Avenue South is also known as 255th Street.