A well tuned quartet of F40PH engines pull the California Zephyr train No. 6 less than 10 minutes from its scheduled stop at Provo, Utah on May 15, 1989.

With four additional Amtrak cars including the Beach Grove observation car, the California Zephyr train No. 6 climbs toward Soldier Summit on June 5, 2016. Amtrak President and CEO Joseph H. Board... (more)

With Amtrak's Phase 1 Heritage P42DC in the lead and the last Siemens ACS-64 delivery trailing, a 14 car California Zephyr glides through Wellington Canyon east of Wash on June 5, 2016.

With Amtrak's Phase 1 Heritage P42DC in the lead and the last Siemens ACS-64 delivery trailing, a 14 car California Zephyr curves through Spanish Fork Canyon just after sunrise on June 5, 2016.

The eastbound California Zephyr runs through a classic location on the former Rio Grande.

Eastbound California Zephyr, No. 6, charges up the west slope of Donner Pass in the Sierra Nevada Mountains, to the Summit at Norden.

Amtrakā€™s eastbound California Zephyr drops downgrade through Clay, Colorado, on March 16, 2011. In the background directly above the locomotives is ā€œLittle 10 Curve,ā€ where the train will be... (more)

The eastbound California Zephyr, No. 6, exits the Florinston Narrows along with the Truckee River. Both mains and the river crowd together through the Narrows.

The eastbound California Zephyr is cruising along the former Rio Grande east of Thompson Springs, Utah early on a glorious spring day.

Union Pacific substitute power leads Amtrak's California Zephyr on Rio Grande rails in Utah's Happy Valley on July 21, 1990.

On a clear Friday, February 26, 2016, Amtrak's eastbound California Zephyr cruises through New Castle, CO.

The eastbound California Zephyr cruises through a sandstone canyon alongside the Colorado River, having just passed through the community of Burns, CO on January 23, 2016.

The newly renovated platforms at Denver Union Station host Amtrak 6, apparently on time (or at least close), while the station facade is bathed in Broncos Blue & Orange in honor of their 5th strai... (more)

Just after a springtime mountain snowstorm, Amtrakā€™s eastbound California Zephyr is about to take down the West Cliff signal at Pinecliffe, Colorado, on April 22, 2001.

I had grand plans this afternoon to catch the eastbound California Zephyr as it rounded the curve at Crescent amid snow-laden pines with a glorious sunset over the continental divide in the backgr... (more)