A summer version of the Rio Grande Ski Train curves out of Plain and is about to enter the final tunnel for the day—Tunnel 1—on July 28, 2001. Operated in the warmer months for hikers and moun... (more)

Chicago & North Western GE C44-9W No. 8625 leads a westbound Union Pacific manifest freight approaching Tunnel 1 east of Plainview, Colorado, on May 2, 1998.

An eastbound Union Pacific coal train powered by Southern Pacific GE AC4400CWs threads Tunnels 2 and 3 just west of Plainview, Colorado, on March 20, 1997. The unique Flatiron rock formations domi... (more)

An eastbound Union Pacific coal train led by a pair of Southern Pacific AC4400CWs threads Tunnel 1 at Plainview, Colorado, on New Year’s Eve 1997. The rear of the train can be seen passing Plain... (more)

An eastbound Union Pacific engineering special approaches Tunnel 1 at Plainview, Colorado, on the afternoon of August 13, 2003. The 11-car passenger train is powered by impressive EMD DDA40X “Ce... (more)

The Rio Grande Ski Train curves toward Tunnel 1 just east of Plainview, Colorado, on February 10, 2001.

The Rio Grande Ski Train approaches Tunnel 1 east of Plainview, Colorado, on February 15, 2008.

This F9 survives today.

Westbound climbing the slope

Westbound climbing the slope

UP 7922 leads an eastbound coal train past a group of MOW workers at Plainview Siding.

Fog begins to lift as the California Zephyr makes a steady climb threading through the numerous tunnels of the Front Range of the Rocky Mountains after leaving Denver.

Amtrak No. 5 heads west out of Plainview, Colorado, on the morning of May 14, 2017. The train is passing through Tunnel 3 in a series of tunnels that penetrate the unique Flatiron rock formations,... (more)

Rio Grande 5504 heads Eastbound at Plainview with a loaded coal train just after Sunrise.

On September 21, 2001, the American Orient Express luxury cruise train heads westbound through the Flatiron rock formations into Tunnel 3 and the heart of the “Tunnel District” on Union Pacifi... (more)