SC 392 begins at an intersection with U.S. Route 1 (US 1; Columbia Highway) south-southeast of Ridge Spring, Aiken County. This intersection is southwest of Aiken Wayside Park. It travels to the northwest and curves to the north-northwest. The highway enters Saluda County. It crosses Flat Rock Creek and passes by Flat Rock Cemetery just before entering the city limits of Ridge Spring. At Main Street, it meets its northern terminus, an intersection with SC 23/SC 39.[3]