UP 6825 (ES44AC) runs through dense fog at Coal Creek Canyon, Colorado on the Moffat Tunnel Sub.

UP 6825 (ES44AC) leads a freight south on the Moffat Tunnel Sub through Leyden, Colorado.

A southbound manifest approaches Sneed Siding in north Austin. The US-183 flyover is visible in the background.

A southbound manifest greets the northbound rush hour on the MoPac Expressway, named for the ex-MoPac trackage that runs down the middle of the freeway.

UP 6825 and mate are DPUs on the back of a coal train that is descending through the Big Ten Curve area west of Denver, CO. It is shown under Clay siding, in Little Ten Curve.

UP 6825 and a former SP AC440CW head a coal train downgrade through the Big Ten loop above Arvada, CO while their rear DPUs exit the east end of Clay siding above them.

A UP coal train descends through the Big Ten curve area below Clay siding. Unit 6825 is the rear DPU. The front of the train is entering Rocky siding area below Big Ten.

A pair of Union Pacific locomotives tag along as Distributed Power Units behind a westbound empty coal train heading into the Powder River Basin.

Several outbounds await their slot out of West Colton Yard. From left to right MWCFR, MWCEC, and LOQ32 (Kaiser Hauler) are seen. That genset in the foreground would later lead LOQ32.

An empty coal train heads west out of La Fox, approaching Elburn.

UP 6825 leads a freight west across the Terminal in Kansas City.

I had been wanting to grab this shot in Mendenhall for a long time but finding a SB train on this line with the right lighting conditions is rare.

This was the last shot I decided to grab of this SB coal. I thought maybe there'd be something waiting at the Saratoga siding to go north, but no such luck, so I called it a day.

One of the other nice curve shots on the Beaumont Sub between Jackson and Magee.

This is a shot I don't get to take much more due to lack of traffic on this line. Probably why I was so glad to see a loaded coal in the yard this morn. I knew I could grab this one.