The westbound Zephyr is running just a few minutes late as it approaches the east switch at Leyden. The train is moving rather slowly as it is looking at an Approach signal (yellow over red) at Leyden. An eastbound work train is getting in the clear in the siding. By the time the Zephyr can see the west end of Leyden, they will be back on a clear signal.
The lead unit, AMTK 207, is the highest-numbered P42DC on Amtrak's roster!