 Ohio State Route 308

State Route 308 (SR 308) is a north–south state highway in the central portion of Ohio, a U.S. state.The southern terminus of SR 308 is at SR 229 in the western end of the village of Gambier, and its northern terminus is to the north of that point at a T-intersection with U.S. Route 36 (US 36) that is located approximately east of the city limits of Mount Vernon.