UP 3974 (SD70M) runs solo back to Denver, passing between the Commerce City refineries on the Greeley Sub.

UP's Lone Pine Local is tied down at Chaffee siding in Mojave.

Various power sits in UP's Proviso Yard on a warm summer evening.

UP 3974 rests in Proviso Yard with a WC Geep in the background.

A westbound manifest heads through the ghost town of Dryden, TX on the former SP Sunset Route with the class unit of SP's order of SD70Ms leading the way. While it may be 2015 (and this photo is ... (more)

A westbound manifest heads through rural Sanderson, TX on the former SP Sunset Route with the class unit of SP's order of SD70Ms leading the way.

Several EMD locomotives in the middle of shop time, including two SD70Ms, sit in front of the Union Pacific’s Downing B. Jenks Shop in North Little Rock, Arkansas, on May 8, 2014.

UP 3974 making it way westward through Sanderson Canyon on manifest to El Paso, Texas

A westbound manifest accelerates up the hill just west of the siding at Shumla as highway US 90 parallels the tracks in this remote part of Texas.

UP 3974 soars above the Eagle Nest on former SP Sunset Route tracks. The old highway bridge is the original US 90 span, the new one of which I am standing on to get this image.

The vastness of the west is one of a few things that will make a train appear small. This westbound is curving through Sanderson Canyon on the ex-SP Sunset Route, a case study on my opening state... (more)

A westbound manifest freight traverses scenic Sanderson Canyon in remote (and aptly named) Sanderson, TX as it heads toward El Paso on the famed ex-SP Sunset Route. The lead locomotive is the cla... (more)

The tracks belong to CSX but the power is anything but as two UP units and a trailing NS locomotive bring the S541 into Corbin for a much needed crew change. The crew is 30 minutes from going on ... (more)

UP power pulling Mixed Freight on CSX's P&A sub.

I took these pictures due to the fact that this brand new right out of the factory unit's controls and instruments were different than any SD70M I have seen making think it might be an experimenta... (more)