RTD 4037 (Hyundai Eagle P3) commuter rail train arrives from Denver International Airport as it drops down from the elevated track north of Denver's Union Station.

RTD commuter rail train #4041 (Hyundai Eagle P3) passes the BNSF engine servicing facility in Denver, Colorado.

RTD Light Rail train #147 runs through Littleton, Colorado, passing an idle DPU of a coal train waiting to head to Denver.

Heavy snows blanket a colorful RTD commuter rail train as it runs pas the BNSF engine servicing facility in Denver, Colorado.

RTD Light Rail Train #323 runs past an idle BNSF heavy train in downtown Denver, Colorado.

RTD's Hyundai Eagle P3 commuter train passes a water tower at sunrise as it heads towards Denver's Union Station.

RTD Light Rail train #263 runs towards Littleton, Colorado on a line that parallels the heavy BNSF and UP rail traffic on the Joint Line.

RTD Light Rail Train #4032 (Hyundai P3 Eagle) runs on the elevated section next to the UP's North Yard in Denver, Colorado at dawn.

RTD light rail train #293 passes an idle BNSF train at the Evan Station in south Denver, Colroado.

Denver Union Station has become a busy place in recent years. A couple extra cars, presumably used as backup equipment, wait their next assignment amidst the sprawling track layout.

A couple Silverliner V units await their next work at Denver Union Station.

RTD light rail train #284 pulls into the Invesco Station. The Invesco Field stadium in the background is where the Denver Broncos play their home games

RTD Denver Light Rail Train #257 leads passengers through downtown Denver, Colorado and along the main line which handles heavy rail traffic moving through the City.

RTD Light Rail train #341 pulls into the Empower Field at Mile High Station. Empower Field is where the Denver Broncos play their home games. Pretty soon the line will be active on weekends as t... (more)

RTD 4028 (Hyundai Eagle P3) takes the elevated track over the North Yard in Denver, Colorado at sunrise.