Union Pacific's MGJNY thunders eastward below the cliffs near Hot Sulphur Springs, CO.

The sun has just risen above the mountains to illuminate Union Pacific's MGJNY working through 'Azure' before dipping into Gore Canyon.

UP's MGJNY accelerates out of the siding at 'Troublesome' after a meet gone wrong with a westbound coal empty. Both trains were too long for the meet at 'Troublesome' so the empty coal train was f... (more)

Union Pacific's MGJNY navigates Byers Canyon following the Colorado River near Hot Sulphur Springs, CO.

Freezing fog and light snow shrouds Tunnel #4 at Plainview, Colorado as UP 8530 (SD70ACe) leads the Grand Junction to Denver freight down the Moffat Tunnel Sub.

UP 8530 (SD70ACe) leads a quartet of power out of Tunnel #1 at Plainview, Colorado and will drop down into Coal Creek Canyon.

UP 8530 (SD70ACe) leads a freight down the hill from Tunnel #1 and into Coal Creek Canyon, Colorado as it heads to Denver on the Moffat Tunnel Sub.

Coal loads exit the twin tunnels at Thistle, catching the soft glow at dusk along the realigned right-of-way, rebuilt after a massive landslide blocked the canyon and wiped out the original D&RGW ... (more)

With their dynamic breaks howling, UP coal loads fight gravity descending the horse-shoe shaped Gilluly Loop at a crawl speed after setting off their four pack of manned helpers at Soldier Summit.... (more)

Coal loads howl up the grade through the Price River Canyon with the front end power, four pack of manned helpers, and rear DPU giving it all they've got restricted to 10mph in a grand spectacle o... (more)

The deep labored roar from a brace of three modern Union Pacific motors echoes through the tall pines that line Donner's eastern slope at Eder as SD70ACe 8530 nears the Summit of the Donner grade ... (more)

Only a few moments of sunlight are left as a westbound Union Pacific manifest having just made the run over Donner Pass rolls through the town of Colfax.

UP 8530 leads the North Platte to Roseville manifest out of tunnel 41, the big hole as it crests Donner Summit.

8530 leads the MNPRV into Colfax in the late evening.

This is a eastbound stacktrain rounding the mountain at Sloan