Photo By: Kevin Morgan
 

About a month ago, Union Pacific reinforced the track on the north edge of Big Ten Curve. A lot of rip rap rock was laid on the slope of the track, as you can see to the right. The California Zephyr, with nine Superliners, climbs up and around Big Ten.
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Tuesday, June 24, 2025 at 12:42:45 PM
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
Amtrak 		Model
P42DC 		Primary Unit Number
AMTK 147

Paint Scheme
Amtrak Phase 5b 		Symbol
AMT5-23 		Train Type
California Zephyr (Amtrak)


Photo Information
Camera Make/Model
DJI / Mavic 3 Pro [FC4382] 		ISO
100
Flash
Did Not Fire

Focal Length
70 mm 		Shutter
1/320 seconds 		Aperture
f/2.8

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