Out of ALL of the trains that I wish I had known about....THIS is the one.

WC 6584 leading a eastbound CSX Detour/NYSW SU-100 sitting under Route 17. I spotted this sitting under the Quickway, and quickly made a bee-line for the nearest U-Turn, and bagged this shot before continuing on my way. Sadly, I could not chase this down through Warwick into Vernon. The worst part is that there was not one report of this train ever entering the NYSW. Sad, but true.