UPY 625 humps a string of cars in the 36th Street Yard while a string of heavy power waits on the side.
The UP brings in a unique load on a flatbed to the 36th Street Yard - the generator section of a Vestas wind turbine.
UP 2413 heads to the 36th Street Yard with a mixed freight in tow.
The 'Smurf' GP38-2's of GATX always appear well maintained.
GMTX 2167 (A former UP GP38-2) makes the turn from the BNSF Denver Yard and heads to the UP 36th Street Yard.
A huge thunderstorm was developing to the north while a variety of light power wait for assignment in the 36th Street Yard.
The UP still uses a variety of MP15AC and DC power in their two Denver Yards.
UP 8441 (SD70Ace) brings a mixed freight through the 36th Street Yard.
Baby tunnel motor UPY 629 (GP15-1) gets ready to hump the last car of a string.
UP heavies bring in full autorack cars into the 36th Street Yard.
UP 1517, a former St. Louis Southwestern GP40M-2, still had her Cotton Belt 'bloody nose' markings on at the time of this photo. In early 2013 she was repainted in the standard UP armour yellow. ... (more)
For this year's Cheyenne Frontier Days the Union Pacific sent their E9A UP 951 to Denver for the run.
This GMTX GP38-2 (former UP unit) waits for a mate to join before heading to the 36th Street Yard to shuffle freight cars.
Two SD70ACe units wait in the 36th Street Yard for their next assignment.
Two GP15-1's in fresh paint (both ex MP units) work the 36th Street Yard in Denver.