An eastbound Southern Pacific train of lumber empties pulls the 1.4% grade through Cougar, California, helped by a rebuilt SD45 wearing the colors of the failed Santa Fe merger.
SP 4-8-8-2 4141 is on the move with forty-eight car First 641 near Redding California in 1938. Otto's speed estimate on this westbound freight was 45 MPH. Otto Perry photo, from my collection.