378th Avenue in Mercier Township, South Dakota

378th Avenue in Brown County is a gravel unclassified road. It runs in a north-south direction starting from 127th Street and crosses Richmond Drive, West Bridge Road, 128th Street, 129th Street, 131st Street, 132nd Street, 133rd Street, 134th Street and 135th Street. It connects Ravinia Township and Mercier Township. 378th Avenue also exists in Highland Township, New Hope Township, Franklyn Township, Palmyra Township and Allison Township.