Amtrak’s eastbound California Zephyr descends out of the Rocky Mountains, making the approach on the Big Ten Curves and their next stop, Denver. They have just exited the final tunnel on their t... (more)

The California Zephyr climbs out of Coal Creek Canyon and heads towards Tunnel #1 at Plainview, Colorado.

UP 2010 (ES44AC) leads an oil can train through Rainbow Cut with the Boulder, Flatirons in the background.

BNSF 8409 (SD70ACe) sits idle on a helper track next to the Southbound Joint Line track.

The California Zephyr rounds the corner leading to Tunnel #1 at Plainview, Colorado.

Amtrak engine #63 (P42DC) makes the climb out of Coal Creek Canyon towards Tunnel #1 at Plainview, Colorado.

UP 2010 (ES44AC) leads a loaded coal train through Plainview on the Moffat Tunnel Sub.

Amtrak engine 180 leads the California Zephyr out of Tunnel 1 and heads towards Plainview, Colorado.

Amtrak engine 83 leads the California Zephyr through Coal Creek Canyon on the Moffat Tunnel Sub.

The California Zephyr crosses over the road leading into Coal Creek Canyon as it begins the run up the Moffat Tunnel Sub.

The California Zephyr climbs the steep grade up to Tunnel 1 at Plainview, Colorado.

After running through Coal Creek Canyon, the California Zephyr climbs the steep grade up to Tunnel 1 at Plainview, Colorado.

A bright sunny morning greets the passengers on the California Zephyr as the 5 train climbs up to Tunnel 1 at Plainview, Colorado.

Rio Grande EMD GP60 Nos. 3155 and 3154 power a summer edition of the Rio Grande Ski Train downgrade out of Plainview, Colorado, on the afternoon of August 5, 2000. For a short while anyway, these ... (more)

The Rio Grande Ski Train is threading Tunnel 3 and 4 as it climbs the Colorado’s front range just west of Plainview, Colorado, on January 18, 1998. On the rear are business cars “Kansas”, �... (more)