UP 4014 rounds the final leg of an "S" curve just outside of Sentinel, AZ as it continues to race east in the 100 degreees heat!

The Union Pacific 4014 departing the former Southern Pacific Tuscon yard as they head east for Lordsburg, NM on a fine October morning.

A Big Boy Pointing at Tehachapi. UP 4014 will likely be the first and last "Big Boy" steam locomotive to ever find itself on BNSF's Mojave Subdivision - the tracks that deposit BN... (more)

A photo, nor video, can truly capture the experience of what it's like to stand next to an active 4000 class steam locomotive. Brief moments like this, however, where wisps of steam and the glint ... (more)

Dawn Breaks Over Big Boy. It's just after 6:00 a.m. on the morning of October 13, 2019, as the Union Pacific steam crew prepares UP 4014 for the return trip to West Colton today via Cajon P... (more)

Low morning sun highlights the sage and grass, and the cool temps condense some steam, as UP 4014 heads down the Wahsatch grade at Castle Rock, Utah.

After already havig to go into Emergancy, the UP 4014 gets back underway as he continues east toward Tuscon, AZ and a much needed day of rest. Unfortunately the Big Boy will have to go back into e... (more)

The Union Pacific 4014 climbs the massive straight up the grade thru Fenner as he approches the top heading east for New Mexico.

Union Pacific Big Boy 4014 has just departed Barstow, CA en route to West Colton on day 2 of a passenger excursion to benefit the RailGiants Museum in Pomona, California, which had displayed the l... (more)

Union Pacific's Big Boy 4014 rests for the evening after its return from Barstow, Ca. on the second leg of a two day excursion to benefit the RailGiants Museum in Pomona, California. October 13, 2... (more)

After the dropping down grade from Mescale, the UP 4014 slowly glides toward the Town of Benson as thounsads await his arrival.

The Union Pacific Big Boy, UP 4014, exiting the lower track of the Cienega Creek Preserve before climbing up grade for Mescal, AZ.

With the last minutes of golden hour fast approaching, the UP 4014 pulls out of Tuscon as they prepare to head east for Lordsburg, NM as apart of the Union Pacific Big Boy tour.

Big Boy 4014 has just left Casa Grande for the short tour segment between that city and Tucson. The train is approaching the Toltec Road crossing in Eloy at a good speed. This was another hot day ... (more)

Union Pacific's Big Boy 4014 crests the summit of Cajon Pass on the return leg of a two day excursion with its extensive passenger consist in tow. The event was hosted by the Union Pacific to bene... (more)