ColoradoRailfan.com Photo Gallery

Railroad photograph — Photo by: Kevin Morgan

UP 7850 is slowly descending down the north edge of Big Ten Curve, passing by several UP maintenance crews. UP has placed a lot of riprap rock to help shore up the track here. Indeed, work is ongoing and more rock will be placed in the coming days and weeks.
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User Comments (1)

Posted By Bo Miller On Tuesday, May 27, 2025 At 8:53:49 PM (PT)

Thank you for this view. I wondered what was done with all the ballast on that side of the track.

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Friday, May 23, 2025 at 10:05:02
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
ES44AC

Primary Unit Number
UP 7850

Paint Scheme
UP Flag/Lightning/Wings

Symbol
MGJNY-22

Train Type
Manifest

Photo Information

Camera Make/Model
DJI / Mavic 3 Pro [FC4370]

ISO
100

Flash
Did Not Fire

Focal Length
166 mm

Shutter
1/640 seconds

Aperture
f/3.4