UP 8864 (SD70ACe) holds on the siding as a UP freight passes in Platteville, Colorado.

UP 4900 (SD70M) runs past a coal train on the siding at Platteville, Colorado.

After dropping off cars at the adjacent business in Platteville, the crew of UP 3897 SD70M saddle up for a run further south towards Fort Lupton, Colorado.

UP 3897 (SD70M) leading the LaSalle Local drops off a cut of cars to a customer in Platteville, Colorado.

UP 3897 (SD70M) leads a freight through Platteville, Colorado on the Greeley Sub.

Under threatening skies and after holding on a siding at Platteville, Colorado for two southbound freights to pass, UP Big Boy 4014 builds up steam to start its journey back north to Cheyenne, Wyo... (more)

This view gives a good look at how large yet sleek the Big Boy engine is.

After spending the night in Denver UP 4014 heads back to Cheyenne, Wyoming. The massive engine waited in Platteville, Colorado for traffic to clear and then left at sunset, with the red glow from... (more)

Engineer Ed Dickens is at the controls of UP Big Boy 4014 as it heads towards Denver, Colorado during its shakedown test run. The Big Boy engine stayed the night in Denver before heading back to ... (more)

UP Big Boy 4014 runs south on the Greeley Sub through Platteville, Colorado on its shakedown trip to Denver, Colorado.

UP 4014 leads a short test train at Platteville, CO, on the UP Greeley Sub, July 8, 2021

UP 2001 (SD70M) leads the LaSalle local as it runs through Platteville, Colorado on the Greeley Sub.

UP 2001 is in Colorado working the local runs while based out of LaSalle. Here we see the SD70M leading a short freight through Platteville, Colorado.

Sunset on the Last Run

The last Cheyenne Frontiers Day Denver Post charter hustles past the Platteville, CO elevator into the beautiful storm light.

Bruised and battered but everyone is OK. Before sunup UP 7193 (ES44AC) was pulling with three other units a long container train on the Greeley Sub and hit a semi that was hauling pumping equipme... (more)