Keystones_meet_at_Princeton_Jct_IMG_6922 July 4, 2014 700 × 467 Princeton Junction, New Jersey, June 29, 2014. Think fast and act faster; I had only a few moments to turn around and catch this running meet between Amtrak Keystone trains. Both are moving at more than 100 mph! Like this:Like Loading... Share this:FacebookEmailTwitterMoreWhatsAppLike this:Like Loading...