A Santa Fe passenger train powered by Alco PA diesels overtakes a Southern Pacific cab-forward pulling a freight train eastbound in the Tehachapis. In this late 1950 shot, the motive power is special in both cases, the diesels sport the distinctive warbonnet scheme (one of my favorites) while the steam engine has been designed and built to run backwards for both visibility and to keep the crew from being asphyxiated while running in tunnels and snowsheds.
|Robert A. LeMassena, Articulated Steam Locomotives Of North America. Sundance Publications 1979.|
More on the cab-forward here.