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This page is an index of the photos by their contents, as long as reporting marks are visible in the picture. It is far from complete and does not index photos which do not have visible reporting marks.

The reporting marks are converted into company names using's Reporting Marks list, with modifications, addendums, and corrections..

Union Pacific Railroad Company: UP 4090
Small image Large image - most recent pictures first Description
UP 4090 Stanwix_21.12.07_9012.jpg SD70M (ENG)
UP 4090 Stanwix_21.12.07_9011.jpg SD70M (ENG)
UP 4090 Stanwix_21.12.07_9010.jpg SD70M (ENG)