Columbia Speedway was an oval racetrack located in Cayce, a suburb of Columbia, South Carolina. It was the site of auto races for NASCAR's top series from 1951 through 1971.Columbia Speedway page of Racing-Reference website , retrieved 8 May 2007. For most of its history, the racing surface was dirt. The races in April and August 1970 were two of the final three Grand National races ever held on a dirt track.Fielden, Greg, "NASCAR Cleans Up", Speedway Illustrated, September 2004.
