Entering rugged and colorful Little Gore Canyon east of Radium, Colorado, is Amtrak’s eastbound California Zephyr on August 4, 2014.

An eastbound Union Pacific coal train meanders along the Colorado River through Red Gorge west of Radium, Colorado, on November 1, 2012.

A single locomotive brings up the rear of a westbound manifest freight train as it winds through Gore Canyon near Radium, CO on March 30, 2015.

Passing through the depths of Red Gorge on Union Pacific’s Moffat Tunnel Subdivision is westbound coal empty west of Radium, Colorado, on November 6, 2012.

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)

An eastbound Union Pacific coal train rumbles along the banks of the Colorado River as two fisherman in a river boat try their luck between Yarmony and Radium, Colorado, on November 7, 2012.

An eastbound Union Pacific coal train snakes through Red Gorge west of Radium, Colorado, on November 1, 2012. Three mid-train DPUs, along with a lone rear DPU, help keep the heavy train in check o... (more)

On a nice November 7, 2012, afternoon, an eastbound Union Pacific coal train follows the Colorado River through Red Gorge between Yarmony and Radium, Colorado. Six General Electric locomotives pow... (more)

An eastbound Union Pacific coal train gracefully curves along the bank of the Colorado River into Red Gorge between Yarmony and Radium, Colorado, on a warm November 7, 2012.

Union Pacific MRONY heads eastbound out of Radium, Colorado, and is about to enter Little Gore Canyon on the afternoon of August 4, 2014. EMD locomotives powering the train are a pair of SD70Ms (N... (more)

With storms passing to the east, Amtrak No. 5, the California Zephyr, traverses rugged Little Gore Canyon between Azure and Radium, Colorado, on August 4, 2014.

The immensity of some of Colorado’s mountains and canyons is aptly seen here as an eastbound BNSF freight exits rugged Red Gorge between Yarmony and Radium on the morning of June 6, 2013.

Amtrak eastbound California Zephyr swings through a curve east of Radium, Colorado, on August 4, 2014.

Exiting Red Gorge along the Colorado River, a westbound Union Pacific coal empty is between Radium and Yarmony, Colorado, on November 6, 2012.

Springtime along the Colorado River
Union Pacific’s Denver to Salt Lake City manifest freight (MNYRO) has traversed Little Gore Canyon along the Colorado River and is now approaching ... (more)