US Highway 12 in Bangor Township, South Dakota

US Highway 12 in Walworth County is a two-lane expressway. It runs in a north-south direction and crosses US Highway 83, 131st Street, 132nd Street and 133rd Street. It ends in a cul-de-sac. This street is part of the highways 83, 12, 20, Native American National and State Scenic Byway and Lewis and Clark National Historic Trail Auto Tour Route. US Highway 12 also exists in Blue Blanket Township and Hiddenwood Township.