Railroad photograph
Photo by: Kevin Morgan
As UP 7154 rounds the east edge of Big Ten Curve, we see the two DPUs bringing up the tail end back on the main at Eisele (Clay). Big Ten Curve is one of a handful of locations where a crew on the head end of their train can very clearly see the back end.
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Tuesday, August 04, 2026 at 10:50:05
image date



Location Information

City or County and State
Arvada, CO

Subdivision
Moffat Tunnel (UP)

Milepost or Control Point
Big Ten Curve (MP 19.5 to MP 20.2)




Train Information
Railroad
Union Pacific
Model
AC4400CW
Primary Unit Number
UP 7154

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



Photo Information
Camera Make/Model
DJI / Mavic 3 Pro [FC4370]
ISO
100
890
Flash
Did Not Fire

Focal Length
166 mm
Shutter
1/400 seconds
Aperture
f/3.4