On average, once or maybe twice a year, UP will run an Officer Car Special over the Moffat. Usually, the passenger cars are deadheading between Council Bluffs, IA and somewhere in California. That seems to be the case here, as nobody is actually on the train itself. The train is emerging from Tunnel 1, running on a Approach Diverging (yellow over yellow) signal, reading to take the siding at Plain.
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