To Reach 208 Columbia Avenue, Rock Hill, Sc 29730-3504 From Interstate 77 (I-77), Take Exit 77 For Us-21/Sc-5 Toward Rock Hill. Head South On Us-21/Cherry Road For Approximately 2 Miles. Turn Right Onto West Main Street And Continue For About 1 Mile. Then, Turn Left Onto Columbia Avenue; The Destination Will Be On Your Right.