RTD commuter rail train #4045 (Hyundai Eagle P3) runs past the BNSF engine servicing facility in Denver, Colorado.

The engine facility in Denver, Colorado is getting crowded with motors either waiting for service or waiting for orders to catch a train in the Denver Yard.

An RTD-Denver A Line train, with Silverliner V 4035 leading, arrives at the city’s 61st & Peña Station, not far from the Denver International Airport. These electric trains connect DIA with Un... (more)

BNSF 7131 (ES44C4) waits for a green signal so it can head south on the Joint Line towards Englewood, Colorado.

BNSF 7246 (ES44DC) has just been serviced with fuel and sand and now waits for orders to head to the Denver Yard for a train.

A mix of light and heavy power wait in the Union Pacific's north yard in Denver, Colorado.

BNSF 5719 (ES44AC) joins a group of heavies as they wait for service or assignments at the engine facility in Denver, Colorado.

CPKC 4578 (former Kansas City Belle AC4400CW) runs under Park Avenue viaduct as it heads to the Denver Yard.

When is the last time you saw two Warbonnets side by side? Here BNSF 4712 (Dash9) joins another warbonnet as they wait for servicing in Denver, Colorado.

Riders on the roller coaster have fun on a summer day as BNSF 8119 (ES44C4) waits in downtown Denver, Colorado with a loaded coal train.

BN's test of its former Frisco GP50's proved they were the right locomotive for the job, and made the decision to purchase 53 more. They rolled out of La Grange in BN's new high-visibility orang... (more)

Denver Rock Island Railroad's home base holds a number of switcher units that work the industrial area in north central Denver.

Denver Rock Island Railroad's SW1500 runs to get a cut of cars in the industrial area called The Stockyard.

Super heavyweight flat car CCRX 40010RA has 20 axles to distribute the load of the transformer that is being sent through Denver, Colorado courtesy of the BNSF.

A gaggle of light power (Geeps and SD40-2s) wait for orders after being serviced at the engine facility in Denver, Colorado.