Railroad photograph
Photo by: Kevin Morgan
With the expense associated with Tier-4 diesel-electric locomotives (both initials and maintenance), the Class 1s are turning toward rebuilds rather than buying new. UP 6931 is a good example, as it has been rebuilt as a C44ACM and repainted in the newest paint scheme.
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Sunday, March 29, 2026 at 10:29:10
image date



Location Information

City or County and State
Albany County, WY

Subdivision
Laramie (UP)

Milepost or Control Point
Hermosa Tunnel




Train Information
Railroad
Union Pacific
Model
C44ACM
Primary Unit Number
UP 6931

Paint Scheme
UP Nose Flags/Shield
Symbol
Train Type
Intermodal



Photo Information
Camera Make/Model
Canon / Canon EOS R6m2
ISO
200
Flash
Did Not Fire

Focal Length
58 mm
Shutter
1/400 seconds
Aperture
f/8