The 133-foot-long locomotive is the only Big Boy to still travel the tracks.

The world's largest steam engine is coming back to Utah this spring in the first leg of its first-ever coast-to-coast tour, ...

Big Boy No. 4014, described as “the Elvis Presley of locomotives,” could begin its first ever coast-to-coast tour in just a ...

Cheyenne-based Big Boy 4014, the world's largest operating steam locomotive, will make its first ever coast-to-coast tour ...

The world's largest operating steam engine, Big Boy No. 4014, is returning to Utah for a two day stop in April.Union ...

For the first time ever, both coasts could receive a visit from the world's largest operating steam locomotive.

Union Pacific (UP) is joining in the celebration of 250 years of American independence and innovation this year with its ...

Union Pacific has released new details on the schedule for its first-ever coast-to-coast tour of its 'Big Boy' historic ...

Union Pacific has announced the first leg of the tour of its legendary Big Boy No. 4014 locomotive will begin by leaving ...

The tour schedule for the western leg of Big Boy's historic coast-to-coast tour was announced Monday. The world's largest locomotive, which weighs ...

Union Pacific will celebrate the 250th year of American independence with its first-ever coast-to-coast steam tour led by the Big Boy locomotive.