Sacramento Southern Railroad

The Sacramento Southern Railroad is a heritage railway owned by the California State Railroad Museum which operates excursion trains on it. The railroad extends from the museum property located in Old Sacramento State Historic Park south along the east bank of the Sacramento River levee.

The original Sacramento Southern Railroad ran south 24.3 miles (39.1 km) to Walnut Grove, California via Freeport and was a non-operating subsidiary of the Southern Pacific Transportation Company incorporated in 1903.

The line was constructed between 1906–1912, and the first train began operating over the line in 1909. It was merged in 1912 with the Central Pacific Railroad upon completion of the line to Walnut Grove. The line was extended to Isleton by 1929. In 1931, a 3-mile (5 km) extension of the branch reached the Mokelumne River. Southern Pacific ended passenger service on the line the following year.