The Rocky Mountaineer passenger train crosses Blue Mountain Road as it heads into Coal Creek Canyon, Colorado.

Rocky Mountaineer's two GP40-3's lead the passenger train over Highway 72 in Coal Creek Canyon, Colorado.

The Rocky Mountaineer's two GP40-3 engines run through Blue Mountain Road as they enter Coal Creek Canyon

The Rocky Mountaineer passenger train circles around the base of Blue Mountain as it heads towards Coal Creek Canyon, Colorado.

The Rocky Mountaineer's #8021 (GP40-3) runs around the base of Coal Creek Canyon and will soon enter Tunnel #1 at Plainview, Colorado.

The Rocky Mountaineer runs through the Horseshoe curve in Coal Creek Canyon, Colorado as it heads up the Moffat Tunnel Sub.

The Rocky Mountaineer passenger train heads towards Tunnel #1 at Plainview, Colorado as it climbs the Moffat Tunnel Sub to the Continental Divide.

The Rocky Mountaineer is spotted through the trees rounding the base of Blue Mountain at Coal Creek Canyon, Colorado.

The Rocky Mountaineer engines run through a cut in Coal Creek Canyon as the train begins the journey into the Colorado Rocky Mountains on the Moffat Tunnel Sub.

The Rocky Mountaineer runs through Coal Creek Canyon as it heads into the Colorado Rocky Mountains.

The Rocky Mountaineer rolls down the Dotsero Cutoff paralleling the Colorado River

Rocky Mountaineer Railtours “Rockies to the Red Rocks” passenger train approaches Tolland as it climbs toward Colorado’s Moffat Tunnel on April 24, 2024.

The Rocky Mountaineer runs through Tunnel #29 at Pinecliffe, Colorado.

The Rocky Mountaineer's GP40-3 leads the passenger train east after exiting the portal of the Moffat Tunnel, and heads towards the Tolland Valley which is framed with gold aspen trees.

Rocky Mountaineer Through one of the many cuts in Eldorado Canyon near tunnel 18.