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Union Pacific (UPY) Railroad Reporting mark UPY

In December 1999 the Union Pacific began assigning the reporting mark UPY to their yard locomotives, while continuing to use UP for road locomotives. The goal is to retain 4-digit locomotive numbers, with an order for 1,000 new locomotives having been recently announced.

Union Pacific (UPY) 654   GM EMD GP15-1 diesel-electric locomotive Click image for a choice of 11 photos.

The official World Wide Web site of the Union Pacific railroad is at http://www.uprr.com. The Union Pacific Historical Society is at http://www.uphs.org.

Photos of the UP as well as additional information can also be found at unofficial Union Pacific Photo Archive at http://www.e5e.com/uparchives/ and at the Union Pacific locomotive details at http://www.german-railways.com/USA/UP/UPLocoDetails.htm.

Union Pacific R.R., Track miles: 36,000. Okaha, NE [courtesy of The Pocket List of Railroad Officials, 2nd Quarter 1999]

Chicago Rail Photographs collection updated 24 March 2025 at 09:53. Photographs and text copyright © 1998-2000 Harold A. Driscoll, All Rights Reserved. Email address is provided exclusively for personal contact, but emphatically not for use for SPAM net.abuse.