Union Pacific Big Boy passes through Buford, Wyoming as it makes a test run prior to the west coast swing.

Union Pacific Big Boy runs through the yard in Cheyenne, Wyoming.

Sinclair Refinery Union Pacific Big Boy 4014 with the beginning of the 250th Anniversary celebration tour passes American industrial history at Sinclair.

Strong wind at Rawlins, Wyoming creates a miserable dust storm that envelopes man and machine, nearly making UP Big Boy #4014 disappear behind the wall of grit.

UP Big Boy #4014 splits the signals at Hanna, Wyoming as it heads to the stopping point at Rawlins.

UP Big Boy #4014 leads the special colorful consist up the grade from Dale Junction as it heads towards the Hermosa Tunnels.

On the last, and only trip the 4014 made to the Golden State back in 2024 this was my best shot I took of all my image from that trip. Me along with dozens of others at Soda Springs as "Boy B... (more)

The colorful consist of the UP Big Boy locomotive 4014 (4-8-8-4) runs through Hanna, Wyoming as it begins the first leg of the west coast swing, which will have them stopping for the night in Rawl... (more)

UP Big Boy locomotive 4014 (4-8-8-4) runs past the famous Sinclair Oil Refinery in Sinclair, Wyoming.

UP Big Boy locomotive 4014 (4-8-8-4) runs over a bridge spanning an irrigation canal at Harper, Wyoming.

UP Big Boy locomotive 4014 (4-8-8-4) runs through Dale Junction in the famed Sherman Hill area in Wyoming. The weather was beautiful which enabled many to chase and photograph this amazing train.... (more)

UP Big Boy locomotive 4014 (4-8-8-4) runs through Granite, Colorado as it makes a test run prior to the annual west coast swing.

UP Big Boy locomotive 4014 (4-8-8-4) will be starting their west coast run in two days, no doubt delighting thousands of railfans that will be taking photos along the way.

The immense size of the Union Pacific's Big Boy locomotive #4014 is something that every railfan should see. The Union Pacific Steam Team does an incredible job maintaining this million-pound mar... (more)

The Union Pacific's Big Boy locomotive #4014 leaves the Cheyenne Yard on a test run which will take them to the Hermosa Tunnels before heading back to the barn in downtown Cheyenne. The beautiful ... (more)