Rockton and Rion Railroad Historic District, Historic district near Winnsboro, Fairfield County, United States

The Rockton and Rion Railroad Historic District is an industrial site in South Carolina with approximately forty buildings and six structures from the granite quarrying era. The area spreads along a historic railroad line and includes worker housing, operational buildings, and a school constructed entirely from local granite.

The site developed in the late 1800s as infrastructure to support granite quarrying in the region. The system transported stone to markets for decades until activity ceased in the 1940s.

The quarry sites and worker housing shape the appearance of the area, showing how laborers and supervisors lived their daily lives within the industrial landscape. The buildings reflect an era when granite extraction defined the region's economy and craftwork traditions remained visible in construction methods.

The South Carolina Railroad Museum, which received the entire Rockton and Rion Railway right-of-way from Martin Marietta Materials in October 1983, operates museum buildings open to the public free of charge five days a week and runs regularly scheduled scenic tour trains. Check the museum's opening days and train times before planning a visit.

The district's two steam locomotives are preserved as contributing objects, not left standing on the line: the entire Rockton and Rion Railway right-of-way was donated to the South Carolina Railroad Museum by Martin Marietta Materials in October 1983. The museum now runs scheduled scenic tour trains there.