For decades, Americans all over the country have taken rides in trains pulled by a legend and perhaps didn’t even know it.

DENVER — One of the world’s largest locomotives passed through Colorado in October, operating much like it did when it was first built in the mid-1900s.The train, known as Big Boy No. 4014 ...

Union Pacific’s historic Big Boy steam locomotive No. 4014 is touring the Union Pacific system throughout 2019 to commemorate the transcontinental railroad's 150th anniversary.