South Carolina Highway 121
Route of SC 121 highlighted in red | ||||
| Route information | ||||
| Maintained by SCDOT | ||||
| Length | 134.200 mi (215.974 km) | |||
| Existed | 1964–present | |||
| Major junctions | ||||
| South end | US 1 / US 25 / US 78 / US 278 / SR 10 / SR 121 at the GA state line near North Augusta | |||
| North end | US 21 / SC 322 in Rock Hill | |||
| Location | ||||
| Country | United States | |||
| State | South Carolina | |||
| Counties | Aiken, Edgefield, Saluda, Newberry, Union, Chester, York | |||
| Highway system | ||||
| ||||
South Carolina Highway 121 (SC 121) is a 134.200-mile (215.974 km) major state highway that travels north and south in central parts of the U.S. state of South Carolina. The highway is actually part of a long multi-state highway that also exists in Florida and Georgia, as Florida State Road 121 and Georgia State Route 121, respectively.