On a stormy evening, a lengthy Union Pacific passenger special heads through Little Gore Canyon.

A westbound coal empty glides out the spectacular Gore Canyon. The rapids in this canyon are some of the most challenging on the continent. There is only a small handful of raft companies that c... (more)

A lengthy MRONY snakes into Gore Canyon as it slowly works up the western slope of the Rocky Mountains. The rapids of the Colorado River have provided rafters with entertainment all week long.

Union Pacific AC4400CW No. 6852 leads five more standard UP motors on a light power move as the train snakes west through scenic Gore Canyon just west of Azure, Colorado at Inspiration Point on Se... (more)

The western slope of the Rocky Mountains consists of tough, rugged terrain. Winding through this region is the UP Moffat Tunnel Subdivision. Trains traveling west out o Denver travel through this ... (more)

Characteristic of Rio Grande's mainline through the Rockies 17 cars of Union Pacific varnish burst out of tunnel 40 within the confines of Little Gore Canyon. Led by SD70AH 8952 and C45AH 8239, th... (more)

Snaking along the Colorado River, the DPUs of an eastbound Union Pacific coal train are seen in scenic Little Gore Canyon east of Azure, Colorado, on August 21, 2014. Three GE AC4400CWs operating ... (more)

An eastbound Union Pacific coal train twists through short Tunnel 40 in Little Gore Canyon east of Azure, Colorado, on August 21, 2014. Three AC4400CWs operating as a mid-train DPU can be seen ent... (more)

Two rafts float down the Colorado River giving the occupants a good view of Amtrak’s westbound California Zephyr between Tunnels 39 and 40 in scenic Little Gore Canyon west of Azure, Colorado, o... (more)

A loaded Union Pacific coal train threads short 63-foot Tunnel 40 in Little Gore Canyon west of Azure, Colorado, on the afternoon of August 21, 2014.

Curving through Tunnel 39 and into Little Gore Canyon, Amtrak No. 5, the westbound California Zephyr, is west of Azure, Colorado, along the Colorado River on August 20, 2014.

A westbound Union Pacific coal train traces the Colorado River through Tunnel’s 39 and 40 in Little Gore Canyon west of Azure, Colorado, on the afternoon of August 21, 2014. Tunnel 40 in the for... (more)

A Union Pacific Passenger special is about to enter Tunnel #40 in Little Gore Canyon as it heads back East towards Denver.

An empty coal train passes through Tunnel 39 alongside the Colorado River amid the colorful fall landscape.

Amtrak’s California Zephyr, curves westbound through Tunnel 40 in scenic Little Gore Canyon west of Azure, Colorado, on August 21, 2014.