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Route information | ||||
Maintained by ODOT | ||||
Length | 29.24 mi[1] (47.06 km) | |||
Existed | 1937–present | |||
Major junctions | ||||
South end | ![]() | |||
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North end | ![]() | |||
Location | ||||
Country | United States | |||
State | Ohio | |||
Counties | Hocking, Perry, Licking | |||
Highway system | ||||
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State Route 668 (SR 668) is a north-south state highway in central Ohio. Its southern terminus is at an intersection with SR 93 in the Wayne National Forest, northeast of Logan; its northern terminus is at an intersection with US 40 in the unincorporated community of Brownsville.