Railroad photograph
Photo by: Kevin Morgan
With partly cloudy skies, the scene here at Cliff had been fluctuating between brilliant light and muted shade while waiting for this westbound coal empty to arrive. Alas, muted shade ended up being the conditions when it actually arrived. UP 6397 is facing a green signal as the train has picked up some speed, the max authorized speed increasing a bit here at Cliff. UP 6397 started life in scarlet and gray as SP 351 in August of 1995, so it certainly no stranger to the Moffat.
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Friday, June 27, 2025 at 15:58:32
image date



Location Information

City or County and State
Boulder County, CO

Subdivision
Moffat Tunnel (UP)

Milepost or Control Point
CP DS038 (West Cliff)




Train Information
Railroad
Union Pacific
Model
AC4400CW
Primary Unit Number
UP 6397

Paint Scheme
UP Flag/Lightning/Wings
Symbol
Train Type
Unit Coal

Primary Unit Past Number(s)
ex-SP 351



Photo Information
Camera Make/Model
DJI / Mavic 3 Pro [FC4382]
ISO
280
Flash
Did Not Fire

Focal Length
70 mm
Shutter
1/640 seconds
Aperture
f/2.8