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

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

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

Jennifer McRae is a digital media producer for CBS Colorado with more than 25 years of experience in news. Jennifer is part of the digital team recognized for excellence for Best Website several times ...