Union Pacific's Big Boy engine #4014, including the newly painted Abe Lincoln motor UP 1616, sits in the UP's North Yard in Denver, Colorado after making the journey from Cheyenne, Wyoming.

Fog and rain mist covers the area of Speer, Wyoming as the first run of the year for the Union Pacific's Big Boy engine included a run to Denver, Colorado. Here we see 4014 making smoke as it cli... (more)

Union Pacific's Big Boy #4014 (4-8-8-4) backs into the UP's North Yard in Denver, Colorado where it will stay for two days before heading back to Cheyenne, Wyoming.

Union Pacific's Big Boy #4014 (4-8-8-4) crosses Sand Creek as it heads west on the Belt Line towards the UP's North Yard in Denver, Colorado.

Union Pacific's Big Boy #4014 (4-8-8-4) runs past the silo in Platteville, Colorado as it heads south on the Greeley Sub towards Denver.

Sometimes things just work out, in this case me being in Texas for UP's steam specials. Odd that at 46 years old, my first ever photograph of UP steam would be the Big Boy!

The Big Boy crossing the Kankakee River in Momence, Illinois. This would be my final photo of the day for my first ever chase of the Big Boy.

The Big Boy heading down the IHB mainline in LaGrange as an EB BNSF stack train passes above on the Racetrack.

The Big Boy making its waited appearance in the small town of Grant Park, Illinois, on the Villa Grove Sub. Many people gathered along the tracks to see this historic steam engine pass by.

The Big Boy charging through downtown Wheaton. I was expecting a very large crowd here and I was pleasantly surprised by the lack of people.

Here, we see the UP 4014 "Big Boy" early in its day-long journey from Rochelle to Villa Grove, IL, through Dekalb under the coaling tower. There was a line of us railfans here to capture... (more)

On its inaugural run in 2019 after a lengthy restoration, Union Pacific Big Boy #4014 runs over a bridge at Sand Creek in Denver, Colorado during a heavy snowstorm.

Union Pacific Big Boy #4014 kicks up the snow as it runs towards Speer, Wyoming while heading back to the barn in Cheyenne after its inaugural run following a lengthy restoration.

The Abominable Big Boy #4014 engine of the Union Pacific Railroad arrived in Denver to blue skies and warm weather in November of 2019, while making the inaugural run after a long restoration. On ... (more)

It's not everyday that Union Pacific's Big Boy gets to meet Colorado's iconic golden fall colors. Here 4014 is crossing Big Spring Creek, surrounded on all sides by changed leaves. Taken during th... (more)