ColoradoRailfan.com Contemporary Railfanning in Colorado
Railroad photograph
Photo by: Kevin Morgan
The westbound Zephyr starts the climb up Big Ten Curve. I decided to take three shots of the Zephyr this morning from this same perspective. To see the next shot, you can click here.
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Thursday, August 07, 2025 at 09:25:52
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 11

Paint Scheme
Amtrak Phase 5b 		Symbol
AMT5-06 		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
1/1000 seconds 		Aperture
f/2.8