The California Zephyr 5 train runs through Keenesburg, Colorado at sunrise.

Here we get a good look of the new Phase VII paint scheme that has started to grace the P42DC's as the California Zephyr 6 train runs past the BNSF's intermodal facility in Denver, Colorado.

The California Zephyr 6 train rousts the pigeons as it runs past the Union Pacific's North Yard in Denver, Colorado.

Dynamic weather moves in over the mountains at Plainview, Colorado as UP 5624 (AC4400CW-CTE) leads a freight through Rocky on the Moffat Tunnel Sub.

BNSF 6339 (ES44AC) exits Tunnel #1 and will drop down into Coal Creek Canyon, Colorado on its way to Denver.

Stormy weather is moving over Coal Creek Canyon as the California Zephyr heads into the Colorado Rocky Mountains on the Moffat Tunnel Sub.

Storm clouds are moving down the mountain as the California Zephyr rounds the horseshoe curve in Coal Creek Canyon, Colorado.

Snow clouds greet the California Zephyr 6 train as it escorts two Charger units through Tolland, Colorado on the Moffat Tunnel Sub.

BNSF 9275 (SD70ACe) joins a vintage Cascade Green Burlington Northern SD40-2 as they await service at the engine facility in Denver, Colorado.

Coors Critter #997 (SW1000) moves a cut of grain hoppers through the yard at Golden, Colorado.

Clouds hang at the mountain tops as UP 5624 (AC4400CW-CTE) runs a freight through Coal Creek Canyon on the Moffat Tunnel Sub.

UP 5624 (AC4400CW-CTE) runs a freight south through Leyden on the Moffat Tunnel Sub.

UP 7045 (C44ACM) leads a freight through Platteville, Colorado as it heads south on the Greeley Sub.

UP 8948 (SD70AH) brings a freight into the yard at LaSalle, Colorado.

UP 1820 (SD40N) moves into the yard at LaSalle, Colorado.