Saluda Factory Historic District is a national historic district located at West Columbia, Lexington County, South Carolina. It encompasses three contributing sites associated with the development of the area along the Saluda River; Saluda Factory, Camp Sorghum and old State Road. The Saluda Factory ruins consist of the granite foundation and sluices from a textile mill that operated on the river between 1834 and 1884. The Camp Sorghum site was the site of a Confederate prison camp.