Railroad photograph
Photo by: Kevin Morgan
It is rather amazing to me that GP15-1s like this unit have survived on UPs roster longer than their bigger brother tunnel motors like the SD40T-2 and SD45T-2. This particular GP15-1 rolled off the EMD floor in July 1977 as Missouri Pacific 1603. After the UP/MP merger, it spent a number of years as UP 1603, before finally being renumbered to UPY 603. If you look closely, you can even note where the "1" to the left of the "6" was painted over.
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Sunday, April 16, 2023 at 09:55:25
image date



Location Information

City or County and State
Arvada, CO

Subdivision
Moffat Tunnel (UP)

Milepost or Control Point
Leyden (7,020ft)




Train Information
Railroad
Union Pacific
Model
GP15-1
Primary Unit Number
UPY 603

Paint Scheme
UP Classic
Symbol
MGJNY-15
Train Type
Manifest

Primary Unit Past Number(s)
ex- UP 1603 / nee-MP 1603


Photo Information
Camera Make/Model
Hasselblad / Mavic 3 / Mavic 3 Pro [L2D-20c]
ISO
110
Flash
Did Not Fire

Focal Length
24 mm
Shutter
1/1600 seconds
Aperture
f/2.8


(Pre-UPY 603) - Photos of UP 1603

07/19/2026

10/19/2025

10/19/2025

08/29/2025

08/29/2025