Milstead Railroad The 3-mile line from Conyers to the Milstead Manufacturing Company textile mill on the Yellow River was built by the Milstead Railroad in 1909. Callaway Mills later took over the plant, but the community continued to be called Milstead. The railroad was abandoned in 1960, around the time that the mill closed. Milstead Railroad locomotive no. 104, an 0-6-0 steamer built in 1905 by Rogers, is on display near the Conyers depot. Milstead, Georgia, Rockdale's Historic Mill Town website  Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home