A historic steam giant will draw crowds to Ogden, as Union Pacific’s Big Boy locomotive arrives for a free public event tied ...

Union Pacific announced several new stops for Big Boy engine #4014, the world's largest operating steam locomotive, as part of a transcontinental tour celebrating the nation's 250th anniversary.

Machines capable of producing movement and force have been of interest to people ever since the dawn of civilization. Simple ...

Like any form of transport, trains come in a wide variety of shapes and sizes. For public transportation purposes, more riders mean more fares and more income, and so it's a matter of accommodating as ...

The first of Union Pacific's third-generation GTEL locomotives. Wikimedia Commons/Union Pacific. The combination of advances in engine management technology, in the design of heat exchange technology ...