The following highways are numbered 678:
Preceded by 677 | Lists of highways 678 | Succeeded by 679 |
State Route 678 is a short four-mile-long (6.4 km) north–south state highway located in southeast Ohio. Entirely situated within Laurel Township in Hocking County, SR 678 has its southern terminus at SR 374 approximately one and a half miles (2.4 km) southwest of the hamlet of Gibisonville, and its northern terminus is at SR 180 nearly two and a half miles (4.0 km) northeast of Gibisonville. SR 678 provides a shorter alternative for traffic using SR 374 en route from Hocking Hills State Park up to U.S. Route 33 (US 33) at Rockbridge, in conjunction with SR 180.
State Route 6 (SR 6) is a state highway that is unsigned. It travels through the central part of the U.S. state of Tennessee from Lawrence County to Sumner County. The highway is related to the following U.S. Highways:
State Route 374 is north–south state highway in Hocking County, Ohio, located in the southern portion of the state. Its southern terminus is over 4 miles (6.4 km) east of the unincorporated village of South Bloomingville at State Route 56, and its northern terminus is near the unincorporated village of Rockbridge at US 33, west of Logan. The road serves Hocking State Forest as well as Hocking Hills State Park, and the entire highway is part of the designated Hocking Hills Scenic Byway.