Thick frost has coated the pine trees at Tunnel #1 as well as Blue Mountain, and the California Zephyr 5 train rounds the corner at Blue Mountain and heads toward the Colorado Rocky Mountains on t... (more)

BNSF 8130 (ES44C4) rounds the corner with a freight at Blue Mountain, Colorado at sunrise.

The California Zephyr rounds the corner at Blue Mountain and will soon pass through the first of 29 tunnels on the Moffat Tunnel Sub.

The California Zephyr rounds Blue Mountain as it gets ready to enter Coal Creek Canyon on it journey into the Moffat Tunnel District.

UP 5857 (AC4400CW-CTE) rounds the corner of Blue Mountain as it heads up the Moffat Tunnel Sub.

UP 5857 (AC4400CW-CTE) leads an oil can train through Little Ten Curve as it begins the climb up the Moffat Tunnel Sub.

UP 5857 (AC4400CW-CTE) leads an oil can train around the base of Blue Mountain and will soon run through Coal Creek Canyon.

Amtrak engineers Gary Meyer and Justin Anton pose in front of UP 5518 as they get ready to have a crew swap after bringing the California Zephyr down the Moffat Tunnel Sub. A Union Pacific motor ... (more)

Smoke from the wildfires in Canada provides a haze that shrouds Blue Mountain as the Rocky Mountaineer rounds the corner.

Storm clouds greet the California Zephyr as it passes in front of Blue Mountain and into Coal Creek Canyon on the Moffat Tunnel Sub.

Mother Nature dials up a beautiful sunrise as BNSF 6161 (ES44AC) leads a freight through the curve at Blue Mountain on the Moffat Tunnel Sub.

The California Zephyr rounds the curve at Blue Mountain as it heads into the Moffat Tunnel district at dawn with a load or riders for the Winter Park Ski Resort.

BNSF 6161 (ES44AC) leads a freight train around the base of Blue Mountain as it heads up the Moffat Tunnel Sub at dawn.

With snowstorm clouds brewing to the north, the California Zephyr runs through Coal Creek Canyon and climbs up to Tunnel #1 at Plainview, Colorado.

The California Zephyr has busted through a snow drift at Big Ten Curve and now gets ready to enter Coal Creek Canyon, Colorado after rounding Blue Mountain.