Photo By: Kevin Morgan
 

A UP work train is departing the siding at Rocky to continue east toward Denver after picking up the gondola behind UP 6279. This AC4400CW has spent a lot of time on the Moffat, as it was originally delivered in June 1995 in scarlet and gray as SP 278.
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Monday, November 10, 2025 at 2:14:04 PM
image date



Location Information
City or County and State
Arvada, CO

Subdivision
Moffat Tunnel (UP)

Milepost or Control Point
CP DS016 (East Rocky)




Train Information
Railroad
Union Pacific
Model
AC4400CW
Primary Unit Number
UP 6279

Paint Scheme
UP Flag/Lightning/Wings
Symbol
Train Type
Work Train

Primary Unit Past Number(s)
ex-SP 248




Photo Information
Camera Make/Model
Hasselblad / Mavic 3 / Mavic 3 Pro [L2D-20c]
ISO
120
Flash
Did Not Fire

Focal Length
24 mm
Shutter
1/2000 seconds
Aperture
f/2.8


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