Rio Grande train No. 100 races east across the desolate Green River Desert with piggybacks from the SP at Ogden, bound for interchange with the BN at Denver. With 18,000 horsepower, this pig train... (more)

Rio Grande coal train #735 rambles slowly around the UP wye in Provo. The train was loaded at Skyline earlier in the day and would be delivered overnight by the Union Pacific to Intermountain Powe... (more)

NP 6013D leads three other first generation units on ore loads at Minneapolis. This slide has been in my collection for year and was either bought or traded for. No photographer listed on slide.

From my grandfather, Eugene Diller's, collection. The westbound Zephyr slows for a station stop at Glenwood Springs.

A westbound Union Pacific grain train rolls through a pair of snow-covered curves at Topaz, Idaho, on January 20, 2013.

A southbound auto rack reposition train leaves Dunsmuir for Roseville. This train is detouring over the Shasta Route thanks to an extensive tie replacement program in the Columbia River Gorge.

Foreign power on the CP Paynesville Sub with a trio of UP's on a nice sunny fall morning. UP 7112, UP 7173 and UP 8153.

World’s largest diesel locomotive
In very much spring-like weather for Wyoming, with threatening clouds and a dusting of snow, an eastbound Union Pacific freight approaches Laramie in... (more)

UP 7423 leads an eastbound stack train passes under Santa Fe signal bridges on the BNSF's Marceline Sub at La Plata, Missouri. The replacement signals were cut over January 2014.

By 1994, catching an SD40-2 leading a coal train on the Union Pacific was becoming rare. Here the UP 3350 (built by EMD for the UP in March 1977) heads west through Echo Canyon on the CBBVY (Black... (more)

While storms brew over the nearby Wasatch Range, Rio Grande train #283 makes a pickup at Provo Yard.

With plenty of horsepower, UP 79 proceeds east through California's Afton Canyon between Yermo and Kelso with two DD35As, one DD35B and a GE U50C.

At appropriately named Joshua siding two UP Century DD40Xs almost have a westbound over Cima summit in California Mojave Desert between Las Vegas and Barstow.

A pair of Rio Grande GP9s set out a tank car of nitric acid at Trojan Explosives in Spanish Fork, Utah. Conductor Neal Thorpe is standing by his caboose as D&RGW train #666 makes another switch mo... (more)

UP 4937 gets back to speed after a meeting a North Bound.