Southern Railway, recognized by its SOU reporting mark, was founded in the late 19th century to connect the southeastern United States while providing both freight and passenger service across major southern rail corridors. Famous trains such as the Crescent and the Southern Crescent continue to make Southern Railway trains for sale especially popular with collectors and model railroaders focused on classic southeastern passenger service and diesel-era railroading.
SOU locomotives, passenger cars, and freight equipment remain a favorite for layouts featuring Appalachian rail routes, transition-era freight operations, and streamlined southern passenger trains. These railroad models are commonly added to model trains centered on historic southeastern railroads and classic American rail transportation.