A pair of BNSF motors make a light run towards customers in Lafeyette, Colorado on the Front Range Sub.

Union Pacific's Big Boy #4014 (4-8-8-4) runs through Speer, Wyoming as it heads to Denver on the first runs of the year.

BNSF 8159 (ES44C4) leads the LauDen train south on the Front Range Sub out of Cheyenne, Wyoming.

Track Three Testing newly installed PTC gear west of Cheyenne near Sherman Summit on track 3 the Harriman Cutoff.

UP Big Boy #4014 (4-8-8-4) makes smoke as it heads south through Speer, Wyoming on its way to Denver, Colorado.

This shot gives a good look at the 'Elephant Ears' smoke deflectors that were installed on UP Big Boy #4014 as it runs through Speer, Wyoming on its way to Denver, Colorado.

UP 8792 brings an eastbound manifest up the long grade from the North Platte river valley at Ft. Steel as it passes Walcott, WY on an early summer morning.

The massive cliffs behind Green River and the equally massive Green River depot provide a backdrop for a westbound freight headed by DD35A 74 and three SD40's and an SD45. The 17600 horespower... (more)

Union Pacific Big Boy #4014 (4-8-8-4) makes smoke as it heads south on the Greeley Sub towards Denver, Colorado.

Soda Ash Train Running in front of the Great Pink Panther, soda ash strikes the sunrise just before Sherman Hill Summit.

Roster photograph of Burlington Northern GE C30-7 working on a work train at Glendo, Wyoming on July 22, 1999.

UP 9091 (SD70ACe) leads a long freight through Speer, Wyoming as it heads west from Cheyenne on the Transcon.

The Union Pacific's Big Boy engine smokes as it climbs the grade at Speer, Wyoming, while on its way to Denver, Colorado.

Union Pacific's Big Boy #4014 (4-8-8-4) makes its second run of the year from Cheyenne, Wyoming to Denver, Colorado. Note the addition of the 'elephant ears' smoke deflectors on either side of th... (more)

UP 9091 (SD70ACe) leads a long freight up the grade to Speer, Wyoming as it heads west on the Transcon.