UP 1826 (SD40N) sits in the North Yard in Denver, Colorado waiting for the call to sort freight cars.
Cargill Grain's #1134 (SW1200) crosses a road near the silo in Commerce City, Colorado.
The California Zephyr passes a BNSF freight which has pulled onto the siding at West Tonville, Colorado.
The Amtrak Winter Park Express Ski Train climbs out of Coal Creek Canyon towards Tunnel #1 at Plainview, Colorado.
Snow is falling over South Draw as the California Zephyr whips up the snow running towards Crescent, Colorado on the Moffat Tunnel Sub.
A wide-angle view of the engine servicing yard in Denver, Colorado offers a variety of motors waiting for service or assignments.
BNSF 2828 (GP39-2M) runs through the Broomfield siding as it leads a cut of wood cars to a client in Lafayette, Colorado.
BNSF 1733 (SD40-2) shuffles a cut of cars in the Denver Yard.
Executive Grinstein BNSF 9709 (SD70MAC) leaves Golden, Colorado as it heads to Denver with the Coors Beer Train.
Executive Grinstein BNSF 9709 (SD70MAC) leads the Coors Beer Train through the North Yard towards Denver, Colorado.
An eastbound freight led by BNSF 9072 (SD70ACe) meets the westbound California Zephyr #5 at Pinecliffe, Colorado.
BNSF 2828 (GP39-2M) leads the Buck Local in a push you-pull me configuration as it heads to clients in Lafayette, Colorado.
BNSF 5700 (ES44AC) whips up the snow as it leads the Provo train past Chemical, Colorado as it heads towards Denver.
BNSF 5700 (ES44AC) runs through Rocky, Colorado on its way to Denver on the Moffat Tunnel Sub.
Freezing temperatures and snow have frosted the trees in Coal Creek Canyon as BNSF 5700 (ES44AC) leads a freight towards Denver on the Moffat Tunnel Sub.
