sentences:  Carolina Southern stopped railroad service to the county in 2012, and efforts to restore service have proven difficult.However, as of July 2014, positive developments were reported to return railroad service to the area, which was considered integral to spur economic development.in July 2014, Carolina Southern agreed to begin the process of allowing the counties of Horry County, South Carolina, Marion, South Carolina and Columbus County, NC to assume control of the area rail lines.