An eastbound Union Pacific passenger train curves towards Little Gore Canyon after passing through Radium, Colorado, on August 5, 2014. Powering the nine-car special is EMD SD70ACe No. 8795 and GE... (more)

Late in the afternoon of November 3, 2010, a westbound Union Pacific coal train emerges from Little Gore Canyon at Radium, Colorado.

Snaking through the sinuous heart of Red Gorge along the Colorado River is Amtrak No. 5, the westbound California Zephyr, between Radium and Yarmony, Colorado, on November 7, 2012.

Amtrak’s California Zephyr approaches Tunnel 42 along the Colorado River just east of Radium, Colorado, on its trip west on the former Rio Grande route through the Rockies. The view is from an ope... (more)

On the afternoon of October 8, 2015, Union Pacific’s MNYRO (North Yard in Denver to Roper Yard in Salt Lake City) manifest freight curves out of Little Gore Canyon just east of Radium, Colorado, w... (more)

The westbound California Zephyr, Amtrak 5, is dwarfed by the steep, slide-prone slopes as it exits the west end of Gore Canyon between Radium and Kremmling, CO.

Westbound empties approach a tunnel in the Radium, CO area. A few miles ahead at Bond, the train will make a right hand turn onto the Craig Branch for loading in the Steamboat Springs area.

A unit in Rio Grande livery leads westbound trailers through the Radium area. Note the volleyball net on a sandy island in the middle of the Colorado River.

A rail train rolls through the broad expanses of the Radium, CO area.

A mixed freight rolls along the Colorado River in the Radium, Colorado area. Several rafters and boaters are enjoying the day along this calm stretch of water.

A BNSF freight winds along the Colorado River rumbling eastbound on Union Pacific’s Moffat Tunnel Subdivision just east of Radium, Colorado, on the morning of June 6, 2013. The front of the train ... (more)

Amtrak train 5, the westbound California Zephyr, approaches a tunnel near Radium, CO on November 9, 2017.

Bending around a gentle curve along the meandering Colorado River is Amtrak No. 5, the westbound California Zephyr, west of Radium, Colorado, on November 7, 2012. The train has just exited Red Gor... (more)

A westbound Union Pacific coal train exits Little Gore Canyon just east of Radium, Colorado, late in the day of October 8, 2015. The train of empty hoppers is powered with five locomotives up fron... (more)

Eastbound along the Colorado River is a Union Pacific coal train negotiating Red Gorge west of Radium, Colorado, on November 1, 2012.