Railroad photograph
Photo by: Kevin Morgan
The eastbound Zephyr crosses over South Boulder Creek just west of the shortest tunnel in the Tunnel District. Tunnel 29 is only 78 feet long. This area essentially marks the start of the Tunnel District as trains head east from Cliff.
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Sunday, June 07, 2026 at 16:54:04
image date



Location Information

City or County and State
Boulder County, CO

Subdivision
Moffat Tunnel (UP)

Milepost or Control Point
Tunnel 29 (MP 36.4, 75 ft)




Train Information
Railroad
Amtrak
Model
P42DC
Primary Unit Number
AMTK 182

Paint Scheme
Amtrak Phase 5b
Symbol
AMT6-06
Train Type
California Zephyr (Amtrak)


Photo Information
Camera Make/Model
DJI / Mavic 3 Pro [FC4382]
ISO
110
886
Flash
Did Not Fire

Focal Length
70 mm
Shutter
1/500 seconds
Aperture
f/2.8