Tunnel 40—all 63 feet
Amtrak No. 6, the eastbound California Zephyr, curves along the Colorado River through Tunnel 40 in Little Gore Canyon west of Azure, Colorado, on August 21, 201... (more)

Amtrak No. 6, the eastbound California Zephyr, cruises downgrade through Clay, Colorado, on the afternoon of August 18, 2010. Waiting down below at Rocky siding for the passenger train’s passing... (more)

Amtrak No. 6, the eastbound California Zephyr, is seen through the clean dome windows of private car “Sierra Hotel” curving through Dotsero, Colorado, on February 3, 2002.

Amtrak's California Zephyr train No. 6 emerges from the Jordan Narrows on July 27, 1990.

The blare of a Nathan five chime horn from Amtrak's California Zephyr does little to disrupt a quartet of horses enjoying a beautiful December morning in rural Utah County.

Running about eight hours behind schedule, Amtrak's California Zephyr train 6 departs Salt Lake City on Rio Grande's now abandoned passenger mainline along Fifth West street. Jan. 19, 1985

A Southern Pacific SD45T-2/SD40T-2 combo assist Amtrak's California Zephyr train No. 6 through Spanish Fork Canyon on June 12, 1991.

Amtrak's California Zephyr train 6 rambles east through Spring Glen on June 17, 1989.

Amtrak’s “Phase I Heritage” locomotive, GE P42DC No. 156, pilots the eastbound California Zephyr around Big 10 Curve west of Rocky, Colorado, on the afternoon of June 1, 2014. Nice, clean ai... (more)

Waiting at a railway crossing at sunset, hoping to get that one shot in beautiful evening light. It was really a surprise that we were able to photograph two trains. One of them the California Zep... (more)

California Zephyr will soon starts its descent towards Helper, UT. This day he couldn't keep the schedule, delay was about 120 minutes. On the upside, no more shadows were visible on the tracks, o... (more)

Eastbound California Zephyr passing by, perfectly on time, somewhere between Green River and Thompson. Hours later, this train was photographed by Mike Danneman in Eisele, Colorado.

Led by GE P42DC No. 156 in Phase I paint, Amtrak No. 6, the eastbound California Zephyr, drops downgrade through Eisele (formerly Clay), Colorado, late on the afternoon of June 1, 2014.

Eastbound California Zephyr switches to track 3 soon to arrive at its next stop of Martinez, CA. Leading this train is 156 painted in Phase I "bloody nose" paint and the 2nd and 3rd in consist is ... (more)

Due to track work along the UP in Colorado, Amtrak's California Zephyr trains were rerouted through Wyoming for a couple of weeks in May of 2014. A late running train 6 glides east along the Weber... (more)