UP 2718 leads a second section of the ZLAMQ up grade near El Casco.

UP 2649 leads the eastbound ZLCAI at track speed as it races along the Yuma Sub.

UP's Fresno to West Colton train exits Canyon siding with a fresh tier4 leader after meeting a northbound empty rail train.

UP 2692 leads a westbound stack train on BNSF rails on main 2 at Pine Lodge in the early morning.

A very nice and clean UP 2731 leads a West Colton to Roseville manifest up Cajon near Davis Ranch.

UP's Los Angeles to Denver Z train works through the area near Davis Ranch on main 1 as the train nears CP Walker as it climbs up Cajon Pass.

Brand new UP power brings up the rear of the ZMNLA at Ordway.

UP 2726 leads a westbound IDILB on the LA Sub at Bon View as the train passes through Ontario.

One of UP's newest ET45AH's leads the daily ZLCAI up Beaumont Hill.

Between Ordway and El Casco on Union Pacific's Yuma Subdivision, a Fort Worth to West Colton general freight winds downgrade through San Timoteo Canyon with a pair of brand new ET45AH units just d... (more)

One of UP's T4 yearlings leads a K-Line intermodal westbound along the Columbia River between Biggs and Celilo, Oregon.

A freight heads east through Dotsero in the late afternoon sun

Brand new UP power leads this westbound stack at Bon View on the LA Sub in Ontario.

CSXT 3356 brings up the rear of train KG4LB on a beautiful Sunday afternoon in San Timoteo Canyon.

A trio of UP's newest winged warriors lead the eastbound ZCIG4 at Hinda in the early morning.