Barry, James, ENTS
I could do a Rucker, but we won't be setting any new height records here. Barry, Yes, Q. falcata. I found several leaves that have that narrow pointed shape. I will confirm it in spring. I am guessing that these species occupied this side of the Delaware River where it is developed now. We are across I-95 from the Heinz reserve, the big wetland that was saved when 95 was put in. It is much wetter there, and you find more pin oak, green ash, and bitternut hickory. This spot must sit on a rise, as it is dry. Or they drained it to build Tinicum, that may be more likely.
