Amtrak No. 6, the eastbound California Zephyr, approaches the west switch of Rocky, Colorado, on the afternoon of March 15, 2015.

On the morning of the Summer Solstice 1987, Amtrak's California Zephyr crests 7440 ft. Soldier Summit on Rio Grande's Subdivision 6 mainline.

Amtrak train 6, the eastbound California Zephyr passes through the scenic wonders of Little Gore Canyon between Radium and Azure, Colorado, on August 3, 2014. Trailing the road power is a new Siem... (more)

A GE C40-8, borrowed from the Union Pacific, pulls a 16 car California Zephyr east through the Red Narrows of Spanish Fork Canyon on July 21, 1990.

Amtrak No. 6 passes through one of the bores of Nolan Tunnels east of Kyune, Utah, on the descending grade through Price River Canyon after crossing Soldier Summit on February 8, 2005.

Thank goodness for Amtrak! A remarkably beautiful day in the Colorado mountains was also a remarkably slow day on the Moffat Sub: The only movement between noon and 8pm was the eastbound Californi... (more)

Amtrak's California Zephyr makes a chilly run past the Berwyn, Illinois commuter station on its last lap into Chicago Union Station. The consist of this train has little resemblance to the beauty ... (more)

Running perfectly on time, Amtrak's eastbound California Zephyr rolls through Glenwood Canyon beside the mighty Colorado River just east of Glenwood Springs, CO on February 7, 2015.

Amtrak train 6, the eastbound California Zephyr, rolls into Glenwood Springs, CO a few minutes before stopping at the depot downtown on a sunny February 1, 2015.

A GE P32BWH/EMD F40PH combo lead Amtrak's California Zephyr east through Spanish Fork Canyon on Sept. 9, 1996.

A combo plate of power (GE P42DC, GE P32BWH, EMD F40PH) lead the California Zephyr east into the sunlight in Spanish Fork Canyon on Sept. 25, 1998.

Amtrak # 6, the eastbound "California Zephyr", pulled by P42DC # 204 and 130, in the Red Canyon of the Colorado river between Dotsero and Burns.

Amtrak No. 6, the eastbound California Zephyr, backs into Denver Union Station under the new trainshed on the pleasant Colorado night of December 6, 2014.

After helping a late Amtrak California Zephyr train No. 6, the last new Rio Grande locomotive enjoys a little break at the beautiful D&RGW passenger station in Salt Lake City. Sept. 9, 1996

The flanks of the last new Rio Grande locomotive reflect the late afternoon sun at the D&RGW passenger station in Salt Lake City. Sept. 9, 1996