Oconee County

Oconee County is the westernmost county in the U.S. state of South Carolina.Its county seat is Walhalla and its largest city is Seneca.Oconee County is included in the Seneca, SC Micropolitan Statistical Area, which is also included in the Greenville–Spartanburg–Anderson, SC Combined Statistical Area. South Carolina Highway 11, the Cherokee Foothills National Scenic Highway, begins in southern Oconee County at Interstate Highway 85 at the Georgia state line.

Sources 
https://en.wikipedia.org/wiki/Oconee_County,_South_Carolina