ColoradoRailfan.com Contemporary Railfanning in Colorado
Railroad photograph
Photo by: Kevin Morgan
On the north ridge of Big Ten Curve, the California Zephyr is approaching a green signal at the east end of Eisele (Clay).
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Wednesday, July 22, 2026 at 09:31:30
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 130

Paint Scheme
Amtrak Phase 2 (Heritage) 		Symbol
AMT5-21 		Train Type
California Zephyr (Amtrak)

Additional Unit Number(s)
AMTK 164 		   

Photo Information
Camera Make/Model
DJI / Mavic 3 Pro [FC4382] 		ISO
180
888 		Flash
Did Not Fire

Focal Length
70 mm 		Shutter
1/2500 seconds 		Aperture
f/2.8