The California Zephyr meets a BNSF Coal train at Rocky, Colorado as it runs west on the Moffat Tunnel Sub.

A Union Pacific coal empty works westbound through Big 10 Curve between Rocky and Clay, Colorado, on the stormy afternoon of June 2, 2007. Led by a pair of GE AC4400CW locomotives, lone GE AC4400C... (more)

UP 8435 (SD70ACe) leads a loaded coal train through the cut at Rocky, Colorado and will run under Highway 93 as it heads towards Denver, Colorado.

The California Zephyr meets a Union Pacific coal train at the Rocky Siding as it heads towards the Colorado Rocky Mountains.

The California Zephyr climbs out of the Big Ten Curve cut as it works its way up the Moffat Tunnel Sub towards the Colorado Rocky Mountains.

UP 5105 (SD70M) leads the Rocky Mountaineer passenger train on a test run from Denver, Colorado to Moab, Utah and back. The train will begin passenger service on August 11 and the vista dome type... (more)

UP 5105 (SD70M) leads the Rocky Mountaineer passenger train through Little Ten Curve at Rocky, Colorado.

There is a new passenger train set to run on the Moffat Line between Denver, Colorado and Moab, Utah. The train will offer excursions that will include a stop at Glenwood Springs. Most of the c... (more)

BNSF 7068 (ES44C4) leads a long freight through the winding turns of Big Ten Curve as it heads towards Denver, Colorado.

Amtrak tested out running the new Siemens SC-44 on the front of the California Zephyr in February, 2020. It left Denver in the middle of a blizzard as it made its way into the Colorado ROcky Moun... (more)

An orange tinted sunrise catches the Winter Park Ski Train as it heads through Little Ten Curve on its way into the Colorado Rocky Mountains. Skiers and rail fans are excited at the prospects of ... (more)

The California Zephyr runs past Rocky, Colorado as it heads towards Little Ten Curve.

UP 6326 (SD70ACe) leads 5 other engines, including the Western Pacific heritage engine, past the windmills of the ENCAR (National Center for Atmospheric Research) facility in Boulder, Colorado. ... (more)

Amtrak engine 190 (P42DC) leads the California Zephyr between the trees at Big Ten Curve as it heads towards Denver, Colorado.

Back in February of 2020 Amtrak added two new Siemens SC44 Charger units to the California Zephyr. The Chargers were supplemented by a P42DC and two baggage cars and left Denver during a strong s... (more)