BNSF 7205 (ES44DC) passes a silo as it heads into the sunrise at Roggen, Colorado.

BNSF 1798 (SD40-2) moves a cut of cars out of the Denver Yard.

Denver Rock Island Railroad's GP38-2 (A former Mount Hood Railroad motor) moves a load of oil cans to a yard in Central Denver, Colorado.

Denver Rock Island Railroad's GP38-2 (A former Mount Hood Railroad motor) drops off a couple of oil cans in the yard in Central Denver, Colorado.

BNSF 8417 (SD70ACe) muscles a coal train through Manzanola, Colorado.

BNSF 1798 (SD40-2) crosses the South Platte River as it pulls a cut of cars out of the Denver Yard.

The Southwest Chief runs through Model, Colorado as it heads towards the stop at Trinidad.

A Union Pacific Officer's Special passenger train runs through the aspen threes at Tolland, Colorado.

UPY 618 (GP15-1) was built in September of 1979 and can be found still working at the North Yard in Denver, Colorado.

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

BNSF 6962 (ES44C4) waits for the green light to muscle an oil can train towards Pinecliffe, Colorado on the Moffat Tunnel Sub.

BNSF 4419 (Dash9) runs long hood forward as it heads into the Denver Yard where it will be lashed to an awaiting train.

Here is a wide-angle view of the BNSF engine servicing facility in Denver, Colorado.

CAGX 1134 (SW1200) works a cut of cars at the Commerce City Grain silo in Commerce City, Colorado.

BNSF 6962 (ES44C4) waits at the signals in Tolland, Colorado for the green light to move a freight.