It looks and feels more like winter on April 15, 2013, in front of North Yard tower at Union Pacific’s former Rio Grande facility in Denver, Colorado.

Old signal poles still line the tracks as UP 4363 (SD70M) brings a freight into Platteville, Colorado.

A pair of EMD SD70M's lead Memphis, TN - Atlanta, GA intermodal train 22N across Coots Lake Road

UP 4363 (SD70M) leads a freight south on the Greeley Sub an and heads towards Fort Lupton, Colorado.

Nearly three years after Union Pacific acquired Southern Pacific, a solid set of SP power works the Seattle to Los Angeles Z train.

The Potash Local follows the same curve the Colorado  River takes on the other side of Potash Road, as it moves between the Gold Bar Canyon and Little Canyon mouths. While I'm happy with this sho... (more)

The Potash Local exits Bootlegger Canyon as it nears the final turn along the Colorado River towards Intrepid Potash.

The Potash Local heads through the trench along 191, between Seven Mile and Emkay.

The Potash Local continues its trek down the Can Creek Sub, reaching Seven Mile here, on its way to the Potash facility at the end of the line. 

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.

Per the incredibly well-informed Mark Hemphill, Valley City ceased to exist long before the Cane Creek Sub was built through here, but still seems like a good location marker for where I was when ... (more)

The Potash Local enters the Cane Creek Sub at Brendel behind a pair of SD70Ms and with a string of grotty covered hoppers that serve their purpose well.