Southern Pacific Railroad steam locomotive number 3025 at Los Angeles, California on August 06, 1973. SP 3025, a 4-4-2 Atlantic-type locomotive on display in Los Angeles in 1973. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, display.

Southern Pacific Railroad diesel locomotive number 9847 at Modke Point, California in July 1976. SP 9847, 8873, 8959 and one other unit lead a freight train at Modke Point in 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 9800 at Roseville, California on August 03, 1973. SP 9800, 9802 and 2146 parked at the locomotive terminal in Roseville in 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Southern Pacific Railroad diesel locomotive number 9403 at Roseville, California on April 14, 1976. SP 9403 and 8843 lead an eastbound extra freight train at Roseville in 1976. 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-.

Southern Pacific Railroad diesel locomotive number 9238 at Roseville, California on April 14, 1976. SP 9238, 9358 and 9004 with an eastbound extra freight train at Roseville in 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 9238 at Roseville, California on April 14, 1976. SP 9238, 9358 and 9004 with an eastbound extra freight train at Roseville in 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 9197 at Sacramento, California on August 18, 1977. SP 9197 and 9381 lead a mixed freight train west of Sacramento in 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 9186 at Redwood City, California on August 02, 1973. SP 9186 and another unit parked at Redwood City in 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Southern Pacific Railroad diesel locomotive number 9061 at Truckee, California on August 27, 1975. SP 9061, 8968, 8368 and 8403 lead a westbound extra freight train west of Truckee in 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train.