Union Pacific’s MNYRO (North Yard in Denver to Roper Yard in Salt Lake City) manifest freight exits Little Gore canyon just east of Radium, Colorado, on October 8, 2015. The rear of the freight ... (more)

Eight units are leading Union Pacific’s MNYRO westbound approaching Big 10 Curve between Rocky and Clay, Colorado, on the morning of April 22, 2006.

Union Pacific MNYRO rumbles through Tolland, Colorado, during the peak of autumn color on October 2, 2008. The westbound freight has eight locomotives up front, with two EMD SD70Ms leading a GE A... (more)

Union Pacific’s MNYRO manifest freight winds its way through Byers Canyon west of Hot Sulphur Springs (Sulphur on the railroad), Colorado, on October 8, 2015. The lighter scar in the cliff above... (more)

Union Pacific’s MNYRO (North Yard in Denver to Salt Lake City’s Roper Yard) manifest freight climbs out of Tunnel 1 just east of Plainview, Colorado, on June 16, 2001.

Union Pacific’s MNYRO (North Yard, Denver to Roper Yard, Salt Lake City) freight climbs the grade at the mouth of Coal Creek Canyon east of Plainview, Colorado, on a snowy February 2, 2014.

Passing through colorful Red Canyon and crossing the Colorado River between Dell and Range, Colorado, is Union Pacific’s MNYRO freight on August 3, 2014. This location is on the Dotsero Cutoff o... (more)

Former SP 326 gives the MNYRO a push along the South Boulder Creek at Rollinsville, CO.

A patched SP unit brings up the rear of the Denver - Salt Lake City manifest at Rocky, CO.

UP's Denver North Yard to Salt Lake City Roper Yard descends through Gilluly on its way down the former Rio Grande Soldier Summit.

Westbound Denver - Salt Lake City manifest rolls west towards Grand Junction in the late afternoon.

Westbound Denver - Salt Lake City manifest rolls west towards Grand Junction in the late afternoon.

Looking down from the Glenwood Springs Adventure Park, MNYRO is seen exiting out of the last tunnel in Glenwood Canyon.

Union Pacific’s MNYRO manifest freight climbs around the mouth of Coal Creek Canyon west of Clay, Colorado, on July 8, 2012. Three locomotives on the front of the train are about to enter Tunnel... (more)

Eight locomotives are leading Union Pacific MNYRO west, but not all of them are online, approaching Big 10 Curve west of Rocky, Colorado, on February 9, 2015.