Amtrak 89 departs Wilson on the A Line behind a P42.

The California Zephyr heads into Coal Creek Canyon as it begins the journey into the Colorado Rocky Mountains.

She'll be coming around the mountain. The California Zephyr rounds the corner leaving Coal Creek Canyon and heading to Tunnel #1 at Plainview, Colorado.

Amtrak engine #172 (P42DC) leads the California Zephyr over the bridge spanning Highway 72 in Coal Creek Canyon, Colorado.

The California Zephyr runs towards Big Ten Curve and will soon begin climbing towards the Moffat Tunnel.

The morning California Zephyr train out of Denver, Colorado runs through Coal Creek Canyon and will soon start the climb towards the Continental Divide and the Moffat Tunnel.

The California Zephyr rounds the corner and runs towards Tunnel #1 at Plainview, Colorado.

The California Zephyr runs through Rocky, Colorado as it gets ready to climb through 29 tunnels on its way to the Continental Divide.

The California Zephyr runs through Little Ten Curve as it heads to Big Ten and the Colorado Rocky Mountains.

With the majestic Boulder, Colorado Flatirons in the background, the California Zephyr runs through Little Ten Curve at Rocky as it begins the journey up the Moffat Tunnel Sub.

Engine problems meant that the California Zephyr #6 train left Denver, Colorado 12 hours late and with one P42DC engine.

Engine problems for the California Zephyr 6 train meant that they ran with one engine going east from Denver. Here we see it running into the Keenesburg, Cut in Keenesburg, Colorado.

The California Zephyr 6 train was over 12 hours late at Denver, offering this rare opportunity to get the train in good sunlight at Keenesburg, Colorado as it ran east on the Brush Sub.

The Westbound Amtrak California Zephyr, also known as train number 5 is seen heading West through Byers Canyon just outside Hot Sulphur Springs.

The Westbound Amtrak California Zephyr, also known as train number 5 is seen heading West through Byers Canyon just outside Hot Sulphur Springs.