The fast speed of BNSF 6150 swirls the falling snow as it muscles a coal train through commerce City, Colorado.

Coal loaded train of UP going through Commerce City heading west towards North Yard in Denver CO.

BNSF 1675, a former Burlington Northern SD40-2, gets ready to shove a cut of oil cans into one of the refineries in Commerce City, Colorado.

A Harsco Track Technologies RGH10C Rail Grinder makes a pass on the Brush Sub between the oil refineries in Commerce City, Colorado.

If you like old-school switchers then you'll appreciate this SW1200 working the Commerce City Grain facility.

UP 1205 (GP39-2) pulls a string of oil cans to a refinery in Commerce City, Colorado as a BNSF freight heads to Denver on the Brush Sub.

Roadswitcher BNSF Train R PWR4503 23I waits in the clear at Sand Creek on the BNSF Brush Sub. while BNSF Train Z CHIDEN7 22A sneaks past into town under a double rainbow. The Z Train was the firs... (more)

Making a grand entrance and dodging raindrops back into the Denver area is UP Train PDVDV1 23, the Frontier Days Special behind 844, passing BNSF Train R PWR4503 23I, a roadswitcher at Sand Creek.... (more)

The Hudson Turn comes out of Denver as it prepares to meet several loaded coal trains ahead on the Brush Sub.

After a three year hiatus, Union Pacific 4-8-4 #844 made a spirited comeback in 2016 pulling the annual Cheyenne Frontier Days Train between Denver, CO and Cheyenne, WY. Shortly after departing De... (more)

UPY 647 (GP15-1) has just dropped of an empty oil can and passes the Commerce City Grain elevator on its way back to home base.

Union Pacific 844 blasts north out of Denver with the annual Cheyenne Frontier Days trip sponsored by the Denver Post. It was 844's first public excursion following a lengthy rehab.

A BNSF coal train moves through the oil refineries in Commerce City, Colorado.

After a 3 year absence from the mainline, UP 844 is back in service pulling the Cheyenne Frontier Days Denver Post Special, seen here at Sand Creek, CP W005 on the UP Greeley Sub. Today the speci... (more)

After a successful rebuild Union Pacific's famed FEF-3 #844 returned to excursion service pulling the 2016 addition of the Cheyenne Frontier Days special between Denver, CO and Cheyenne, WY. Havin... (more)