The Dorn Mill Complex in McCormick, South Carolina, is a significant historical site that showcases the region’s industrial heritage. Constructed around 1898, the complex originally functioned as a cotton gin and later expanded to include a grist mill in the 1920s. The mill operated until the 1940s, playing a vital role in the local economy by processing cotton, corn, wheat, and producing animal feed .​

The main structure is a 2½-story red brick building with projecting one-story wings. A notable feature is the three-story brick wall of cross-shaped plan, built in 1915 to support a water tower tank. The interior houses original steam engines, boilers, and grist mill equipment from the 1920s, making it one of the few mills in the region with intact machinery from that era .​

In 1917, the property was acquired by M.G. Dorn, J.S. Dorn, and Preston Findley, forming the Dorn-Findley Corporation. They operated the complex as an oil mill, cotton gin, and grist mill, contributing significantly to the local agricultural industry .​

The Dorn Mill Complex was added to the National Register of Historic Places on July 12, 1976, recognizing its importance in the industrial and architectural history of South Carolina .​

Today, the Dorn Mill Complex is managed by the McCormick County Historical Commission and serves as a venue for various community events, including:​

• Festival of Trees
• Farmers’ Markets
• Art Exhibits
• Fireside Chats
• Food Truck Gatherings​

The complex is also available for private rentals, accommodating events such as weddings, receptions, and family gatherings .​

In 2024, the McCormick County Historical Commission completed a significant roof replacement project on the 1898 grist mill building. This restoration was funded through a grant from the State of South Carolina and managed by the South Carolina Department of Archives and History, ensuring adherence to the Department of Interior’s restoration guidelines .