Photo By: Kevin Morgan
 

The rear DPU of a westbound double stack pushes on Main 3 as a pair of diesel engines pull the Cheyenne Frontier Days train back toward Cheyenne on Main 4. Very different duties for the sister units. Note how close they are in number! UP 7143 on Frontier Days and UP 7146 on the double stack.
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Saturday, July 23, 2016 at 12:20:40 PM
image date



Location Information
City or County and State
Laramie County, WY

Subdivision
Laramie (UP)

Milepost or Control Point
CP W517 (Speer Jct)




Train Information
Railroad
Union Pacific
Model
AC4400CW
Unit Number
UP 7143, UP 7146

Symbol
PDVDV2-23
   



Photo Information
Camera Make/Model
Canon / Canon EOS-1D Mark III
ISO
320
Flash
Did Not Fire

Focal Length
180 mm
Shutter
1/500 seconds
Aperture
f/13


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