BNSF 8390 (ES44C4) leads the Provo train through 'The Cut' which will take it under Highway 93 at Rocky, Colorado.

Amtrak's Winter Park Express Ski Train, led by heritage engine 130, crests the top of Big Ten Curve as it starts the climb up the foothills on the Moffat Tunnel Sub.

The California Zephyr runs through Rocky, Colorado as it begins the journey into the Rocky Mountains.

The California Zephyr runs through the snow-covered hills of the Big Ten Curve at Rocky, Colorado.

Amtrak's Winter Park Express Ski Train runs through tunnels 3, 4 and 5 on the Moffat Tunnel Sub as it heads into the Colorado Rocky Mountains.

Amtrak's Winter Park Express Ski Train runs through Little Ten Curve and will soon transition through Big Ten Curve as it climbs towards the Moffat Tunnel District on the way to Winter Park.

Here we see a rare sight these days, which is an Amtrak, a BNSF and a Union Pacific train at the same time running through Rocky and Eisele, Colorado. The train in the upper portion of the photo ... (more)

The California Zephyr begins the climb up Big Ten Curve which will help the train gain altitude for the run into the Moffat Tunnel District.

The California Zephyr runs one car short as it passes through Rocky, Colorado and will soon climb through the Big Ten Curve. The rock formations you see in the distance are the Flatirons, in Bou... (more)

BNSF 9065 (SD70ACe) leads a freight through Big Ten Curve as it begins the climb through the Moffat Tunnel Sub.

The crew of UP 5983 (AC4400WC-CTE) offloads their bags after arriving in Rocky, Colorado. The trip from Grand Junction on the west slope was no doubt a scenic journey as a heavy snow blanketed th... (more)

Amtrak Engineer Gary mounts his P42DC and will take his engine up the Moffat Tunnel Sub and through the Colorado Rocky Mountains.

After waiting for freight traffic to get on a siding at Eisele, Colorado the California Zephyr 5 heads up to Big Ten Curve.

Amtrak Engineer Gary of the California Zephyr 5 chats about needing to wait for some freight traffic to clear on the track ahead at Rocky, Colorado. After about 15 minutes they received the OK to ... (more)

The California Zephyr meets a Union Pacific freight at Rocky, Colorado.