Union Pacific Big Boy No. 4014, the world's largest operating steam locomotive, is making its way through the Midwest.

The world's largest operating steam locomotive will return for an overnight stop this week in Salina. Union Pacific's Big Boy No. 4014 is set to arrive at 6 p.m. July 23 at the Old Depot, 400 N. 13th ...

There is still time to catch Big Boy aka the world’s largest operating steam locomotive before its first coast-to-coast tour ...

Huge crowds of train fans turn out as the 1940s era Big Boy steam locomotive is making a rare trip cross country.

Union Pacific Big Boy No. 4014, the world’s largest operating steam locomotive, has been attracting record crowds across Pennsylvania as part of a historic coast-to-coast tour celebrating America’s ...

The world's largest operating steam locomotive made a stop Thursday at the Reading & Northern Outer Station in Berks County as part of its coast-to-coast semiquincentennial tour.

The world’s largest operating steam engine, Union Pacific Big Boy 4014, is on the East Coast of the United States for the ...

A piece of railroad history came roaring back to life Monday as thousands of rail fans gathered at Steamtown National Historic Site to see the reunion of Union Pacific Big Boy No. 4014 and Steamtown’s ...

SALT LAKE CITY — The world’s largest operating steam locomotive will roar into Utah as part of a national tour celebrating America's 250th birthday. Measuring 133 feet long and weighing 1.2 million ...

The distinctive steam whistle of Union Pacific’s Big Boy No. 4014 engine bellowed throughout Northeast Ohio on July 13, greeting visitors who came to see it on its return journey west. The train ran ...

Big Boy, the world's largest operating steam locomotive in the world, will pass through several municipalities while making ...

A Big Boy steam train will pass through Fort Wayne this week on a trip across the country. Big Boy No. 4014 was one of eight Big Boys and is the only one still in operation. It’s not the first of ...