UP 4012's front engine is lit by a sliver of sun shining just above the Pocono mountians and below a storm cloud.

UP 4012 shows off her massive power lines while in fresh paint.

UP 4012: A subject with more)

6,200 horsepower, give or take, at rest, at Steamtown. Lighting compliments of Lerro Productions.

In a scene repeated countless time in the 40's, UP 4012 simmers in the cool of a Spring evening awaiting some TLC from the hostler. This scene made possible thanks to the lighting of Lerro Product... (more)

Steamtown's UP No. 4012 "Big Boy" enjoys tranquility with the season's first snow.

The smallest engine at Steamtown, Bullard Company 0-4-0T 2, and the biggest, Union Pacific "Big Boy" 4-8-8-4 4012, have accumulated a coating of snow during the season's first big storm, on Saturd... (more)

PNER 1751 GP9 is coupled to the tender to move UP 4012 a short distance for display purposes.

Choose your flavor - UP Big Boy #4012 poses next to an Amtrak Genesis unit visiting during Steamtown's Railfest in 2009. Just over to the left, Canadian National 4-6-4T #47 can be seen.

Big Boy and Amtrak diesel compare notes during Steamtown Lackawanna Fest 2009. Blue, sliver and black go rather well together. 4012 has just got some silver paint to go with the new black paint. ... (more)

4-8-8-4, that's 12 axles, not 6 axles, not 18 wheels, but 24 wheels on the rail: When it absolutely, positively has to be there overnight... A "new" view from Steamtown.

Union Pacific #4012 prepares for another day of "oooohs" and "ahhhhs" as the star static steam attraction at Steamtown National Park. Seen here under a new coat of flat black primer paint.

After meeting a Metra scoot being pushed by Oak Park's namesake unit, a UP manifest approaches the station.

Weather, rust, oil, and no maintenance reveals a colorful closeup of the road name on UP's Big Boy #4012 at Steamtown NHS.

A closeup of the running gear from UP 4012 Big Boy reveals the effect of weather, rust, and no maintenance.