450th Avenue in Alto Township, South Dakota

450th Avenue in Roberts County is an unpaved local road. It runs in a north-south direction and crosses 133rd Street, 134th Street, BIA Highway 500, 136th Street and 138th Street. It ends in a cul-de-sac and connects Alto Township and Ortley. This street is part of the highway "15". 450th Avenue also exists in Ortley Township, Dry Wood Lake Township, Long Hollow Township and Norway Township.