Union Pacific 3GS21B Y2723 is a low-emissions diesel genset locomotive built by National Railway Equipment (NRE) at their Mount Vernon shops in Southern Illinois. Instead of a single prime mover, ... (more)

Power off the morning's 68R J Yard job awaits its next duties as they sit above the Alameda Corridor south of downtown LA.

D Train! D Train!

Trains operate in and out of Anaheim, California, primarily on weekdays. As a result, a trio of Union Pacific 3GS21B GenSets wait in the small facility for the cal... (more)

The Union Pacific's Coast Mesa Local is returning from its early morning work in Santa Ana. It is seen here accomplishing two rather odd railroad feats in modern day RRs. It is street running and ... (more)

A Genset lays over at West Anaheim, once the center of Southern Pacific's Orange County operations.