EMD originally built a couple dozen SD70ACe-T4 demonstrator units. some were painted for and delivered to Union Pacific, BNSF, and Norfolk Southern. Two of these units, EMDX 1608 and EMDX 1609, have been at the Transportation Technology Center near Pueblo, but are now making their way west. The units were sitting near the North Yard tower on this afternoon, waiting to be added to UP's MNYGR to head west.
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