Built in the 1940s, Big Boy No. 4014 retired in 1961 after traveling for more than one million miles. It's now making its way ...

The historic Union Pacific Big Boy No. 4014 is rolling through western Pennsylvania on Saturday, with a stop in Leetsdale.

The world's largest operating steam locomotive made a stop Thursday at the Reading & Northern Outer Station in Berks County ...

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 ...

Rail fans are reminded to stay at least 25 feet away from the railroad tracks, never walk on the tracks and follow other ...

Donna Smolko lifted her cameraphone Saturday as a 1.2 million-pound Union Pacific steam engine’s high-pitched whistle blew in Cresson. And in downtown Johnstown, crowds greeted Big Boy ...

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

Leetsdale officials are bracing for something big rolling through town this month. Union Pacific’s Big Boy No. 4014 is on a ...

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

Over 100 vintage train fans fall ill seeing locomotive roll through their Pennsylvania town - Operational issues with the ...

Welcoming Big Boy: Photos, videos capture world's largest operating steam engine in Western Pa.

Union Pacific's Big Boy No. 4014, the world's largest operating steam locomotive, is drawing crowds as it makes its first East Coast tour ahead of America's 250th birthday.