The reverse curves on the old Main Line at Gap, Pennsylvania offer endless photo opportunities.

Amtrak Keystone train 649 is a regular subject for me in the afternoon.

A couple of weeks back, I suspected that train 649 would be worked by ACS-64 no. 642, which specially painted for American Veterans.

I surmised this correctly, however, the locomotive was working the back of the train rather than in the lead (as I would have preferred for photography).

That said, Amtrak doesn’t operate its trains for my amusement, so I made due with the configuration as I found it.

Images exposed using my Nikon Z7-II with 70-200mm zoom.

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