Southern Pacific Railroad diesel locomotive number 4388 at Mt. Shasta, California in August 1977. SP 4388, 9054 and a third unit lead an extra freight train north of Mt. Shasta in 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 9349 at Mt. Shasta, California on August 17, 1977. SP 9349 help and westbound extra freight north of Mt. Shasta in 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train, helper locomotive-.