Ready to climb Donner Pass.
Four EMD 20-cylinder locomotives power a westbound freight out of Mojave as it begins its assault of the short but stiff grade of Tehachapi's southern slope.
A small patch of sunlight peaks through the cloud cover as the BKDOU's helper rounds the curve that leads into tunnel 1 above Caliente.
In the days before UP, the Southern Pacific didn't waste money on such frivolities as washing their locomotives. UP 7428 is awaiting a crew to continue west.
Sooty power on a bare table train