The BNSF engine servicing facility in Denver, Colorado is active on this day. A cut of engines is moving into the yard as another pair are moving from the yard to the servicing facility for sand ... (more)

The fire burns in the belly of the beast. UP 844 (4-8-4) sits in Denver waiting to take the Cheyenne Frontier Days train back to Cheyenne.

UP 688 (GP38N) moves into the North Yard in Denver, Colorado to sort rolling stock.

UP 4999 (SD70M) moves to the North Yard in Denver and waits for a train assignment.

UP 1418 (GP40N) waits for orders in the North Yard in Denver, Colorado.

The Denver Rock Island Railroad's SW1500 moves a string of cars to the industrial clients in the Stockyards area.

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

BNSF 1899 (SD40-2) gets ready to move a string of stack cars out of the intermodal facility in Denver, Colorado.

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.

UP 1418 (GP40N) moves a cut of cars in the North Yard in Denver, Colorado.

UP 1980 (GP38N) heads into the North Yard for a day of sorting cars in the snow.

UP 4999 (SD70M) heads to the servicing island of the Union Pacific's North Yard with a few other motors.

Denver Rock Island Railroad's #1083 (SW1500) moves a cut of tank cars into a client's yard in Denver, Colorado.

It is Throwback Thursday at the BNSF engine servicing facility as a Grinstein MAC and a Cascade Green SD40-2 wait to their assigned trains.

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.