Ohio State Route 121

State Route 121
State Route 121
Route information
	Maintained by ODOT
Length	35.94 mi (57.84 km)
Existed	1924–present
Major junctions
South end	SR 121 near New Paris
	US 36 near Greenville; US 127 near Greenville;
North end	SR 47 / SR 185 in Versailles
Location
Country	United States
State	Ohio
Counties	Preble, Darke
Highway system
	Ohio State Highway System; Interstate; US; State; Scenic;

State Route 121 (SR 121) is a state highway in western Ohio. It starts at Indiana State Road 121 near New Paris, Ohio, and ends at State Route 47 and State Route 185 in Versailles, Ohio.

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