A pair of UP SD40N locomotives leads a transfer onto the Harbor from the CPKC back to Proviso.

UP 801 (GP38-2) pulls out a cut of gondolas at a yard in Commerce City, Colorado.

UP 801 (GP38-2) sits in a yard in Commerce City, Colorado.

UP 5654 (AC4400CW-CTE) leads a freight on the Greeley Sub past silos in Commerce City, Colorado.

The Colorado Rocky Mountains loom large above UP 2698 (AC4400CW) as it leads an oil train towards Arvada, Colorado on the Moffat Tunnel Sub.

UP 6825 (ES44AC) runs past the signal at Leyden, Colorado.

UP 8009 (ES44AC) muscles an oil can through Leyden, Colorado.

UP 8639 (SD70ACe) shoves an oil can train through a very snowy Tolland, Colorado.

UP 8835 shoves on the rear of a long WB just west of the Palm Springs crossovers.

UP 7328 leads the westbound ZG4CI downgrade at El Casco.

UP 4533 (SD70M) leads an officer train through Barbara's Gulch between Chemical and Rocky, Colorado.

UP 2698 (AC4400CW) leads an oil can train through Leyden, Colorado.

Union Pacific 2-8-8-0 3604 leads 61 car freight number 258 east at 12 MPH in 1938. Otto Perry photo, from my collection.

Some trains are harder to photograph than others. In my attempt to find something good to shoot Saturday. I stumbled across this eastbound in the SLC Intermodal yard about 8:30 a.m. The LA Z train... (more)

I was heading home from work, driving across the tracks, and notice a green signal. I made a quick U turn, parked and got trackside. Fortuity the train didn't disappoint, a rebuild C44ACM in new p... (more)