Its eastern terminus is at a T-intersection with SR 37 just one-quarter mile (0.40 km) south of the village of Magnetic Springs.

After one and a half miles (2.4 km) and in Perry Township, SR 347 curves around the ramps of an interchange and comes to an intersection with Logan County Route 144.

Past the plant, SR 347 crosses into Liberty Township, Union County travels in a more easterly direction.

[4] The terrain of SR 347 is mainly flat though near US 33, the route skirts the Union Moraine, location of the highest point in the state.

[8] Between 1992 and 1994, SR 347 was moved onto a new road south of East Liberty to better serve the auto plant which opened in 1989.