BNSF 6202 (ES44AC) rounds the corner at Crescent Colorado as it runs east on the Moffat Tunnel Sub.

BNSF 8346 (ES44C4) muscles a long freight down the grade at Eisele, Colorado, after which it will run through Big and Little Ten curves at Rocky.

In what looks more like a scene from a model train layout, Amtrak ran 4 Chargers on point when the California Zephyr 6 train headed to Denver, Colorado. It was odd not seeing the venerable P42's o... (more)

Amtrak engine 148 (P42DC) is about to lead the California Zephyr into tunnel 13 on the Moffat Tunnel Sub.

BNSF 6202 (ES44AC) leads a long freight through Big Ten Curve where it will drop 2% as it heads towards Rocky, Colorado.

The California Zephyr runs through Tunnel 15 as it heads east down the Moffat Tunnel Sub and towards Denver, Colorado.

The California Zephyr heads towards Tunnel #1 at Plainview, Colorado after having run through Coal Creek Canyon.

The California Zephyr runs through Tunnel 13 on the Moffat Tunnel Sub and will next enter Tunnel 12 on its way to Plainview, Colorado.

The California Zephyr runs through Coal Creek Canyon as it begins the climb into the Colorado Rocky Mountains.

BNSF 7414 (ES44DC) leads an oil can train through Coal Creek Canyon, Colorado.

Looking a bit like an N scale model, Amtrak’s westbound California Zephyr edges the rocky cliffs through Gore Canyon at Azure, Colorado, on September 15, 2021.

The California Zephyr has just come down the hill past the Rocky Siding and is now running through Little Ten Curve as it begins the climb through the Colorado Rocky Mountains.

BNSF 8384 (ES44C4) leads an oil can train through Plainview, Colorado.

After running down the east side of the Colorado Rocky Mountains on the Moffat Tunnel Sub, UP 6372 (AC4400CW) heads to Arvada on its way to Denver, Colorado.

UP 6372 (AC4400CW) rounds Big Ten Curve as it heads down grade from Blue Mountain.