Photo By: Kevin Morgan
 

Okay, it is time to depart! UP 1837, a snoot-nose SD40-2, puts on a bit of an exhaust show as the engineer throttle up to start pulling the (roughly) 40 car Limon Local eastbound on Main 1 toward a green signal. UP 6168 was delivered as SP 139 in April 1995. I was a sophomore in high school at the time, and remember seeing those new scarlet and gray units sometimes when I was getting lunch.
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Sunday, September 14, 2025 at 4:26:16 PM
image date



Location Information
City or County and State
Denver, CO

Subdivision
Limon (UP)

Milepost or Control Point
Stapleton




Train Information
Railroad
Union Pacific
Model
AC4400CW
Primary Unit Number
UP 6168

Paint Scheme
UP Flag/Lightning/Wings
Symbol
LDB50-14
Train Type
Local

Primary Unit Past Number(s)
ex-SP 139



Photo Information
Camera Make/Model
DJI / Mavic 3 Pro [FC4370]
ISO
110
Flash
Did Not Fire

Focal Length
166 mm
Shutter
1/640 seconds
Aperture
f/3.4


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