The world’s largest operating steam locomotive, known as Big Boy No. 4014, is coming back to Colorado this summer with two ...

Union Pacific's Big Boy No. 4014 will visit Colorado, for a limited excursion tour this July. A larger tour is planned in ...

Union Pacific is laying solid financial tracks by investing heavily in infrastructure upgrades and productivity-boosting projects. The company has committed $3.4 billion to capital projects and plans ...