Interesting thread. I'm from that area and never imagined that there could have been an interchange in PY between the NYC and PRR. I do remember tracks on both sides of the outlet, however. The south side track ended in back of a warehouse (long gone now) at the head of the lake. The north side ran past Birkett's to a warehouse next to Liberty Street and then a little further on to the west toward the lake.
If I were searching today for the interchange track, I'd start in the old PRR yard since most of that space is still there. Based upon my memory I'd say it would be pretty much impossible to do an interchange track from the PRR track west to Birkett's -- too steep and too close to each other -- unless the track ran by the north side of the mill (NYC on the south side), under the Main Street bridge, and connected with the NYC before the Liberty Street warehouse. It would be steep but might be doable. Another routing possiblity (but one that I have no memory of) would start the track well north of the PRR station, come down in back of the stores on Main Street, curve past Birkett's and join west of there.
Finally, I'd look for the remnants of track running to the east from the PRR yard with an interchange east of town. This might even be on the south side of the PRR bridge across the outlet as there used to be a chemical plant on the south side of the outlet just east of PY that was served by one of the railroads. This would also help to explain the two bridges noted previously. I'm just throwing this out there for consideration.
I'll be in PY in the next few weeks and will try to find some time to poke around a little.
Poppyl
If I were searching today for the interchange track, I'd start in the old PRR yard since most of that space is still there. Based upon my memory I'd say it would be pretty much impossible to do an interchange track from the PRR track west to Birkett's -- too steep and too close to each other -- unless the track ran by the north side of the mill (NYC on the south side), under the Main Street bridge, and connected with the NYC before the Liberty Street warehouse. It would be steep but might be doable. Another routing possiblity (but one that I have no memory of) would start the track well north of the PRR station, come down in back of the stores on Main Street, curve past Birkett's and join west of there.
Finally, I'd look for the remnants of track running to the east from the PRR yard with an interchange east of town. This might even be on the south side of the PRR bridge across the outlet as there used to be a chemical plant on the south side of the outlet just east of PY that was served by one of the railroads. This would also help to explain the two bridges noted previously. I'm just throwing this out there for consideration.
I'll be in PY in the next few weeks and will try to find some time to poke around a little.
Poppyl