A single Union Pacific SD70M leads an officer's special as it races to Denver in advance of developing storm clouds.

UP 4404 (SD70M) leaves storm clouds behind as it runs towards Denver, Colorado with an officer's special passenger train.

UP 4404 (SD70M) leads an officer's train over a bridge at Strassburg, Colorado.

Storm clouds chase UP 4404 (SD70M) as it leads an officer's train over a long trestle at Peoria, Colorado.

Storm Light on the Executive Fleet Rolling in on the Kansas & Pacific westbound for Denver.

Under the fog shrouded coastal hills, southbound Union Pacific SD70M No. 4404 leads a Directors Special along the beach at Emma Wood State Park.

A pair of SD70M's lead Union Pacific's OCS train as it rolls across the Trinity River on a rainy Sunday morning in Dallas, Texas. This is a deadhead move from Council Bluffs on its way to be stage... (more)

A Union Pacific Officer's Special train sits in a snowstorm in the North Yard in Denver, waiting for passengers to arrive.

Spring Snow and Elite Service Westbound towards Provo a passenger special with retirement of a Union Pacific executive and some friends makes a trip through a typical winter storm warn... (more)

The snow is falling fast as UP 4404 (SD70M) waits for passengers to load up an officer's Special passenger train, which will run up the Moffat Tunnel Sub and through the Continental Divide.

UP 4404 (SD70M) heads into storm light as storms east of Aurora, Colorado drop inches of rain.

UP 4404 (SD70M) leads the special heritage car train into Aurora, Colorado on its way to Denver.

UP 4404 (SD70M) leads the Union Pacific special heritage passenger train past some old livestock pens in Greenland, Colorado.

A what could of been shot. The sun and the clouds wouldn't cooperate. But still a pretty cool train. UP 4404 run up the Lynndyl subdivision with an officers special.

UP 4404 leads the Union Pacific heritage passenger train through Sedalia, Colorado.