A fun factoid about that area is that in the 2005 Iron Butt Rally, bonus locations included getting a toll receipt at any of the Milford-Montague Bridge, the Dingman's Ferry Bridge, the Delaware Water Gap Bridge, or the Portland-Columbia Bridge. There have been other IBR bonus locations in the area, but those are some that were nearby.
Should you find yourself searching for National Park Service passport stamps, it appears there are several nearby locations for that as well.
I've about talked myself into trying to get into that area. I'd rather swing wide of New York anyway, and this seems like the perfect excuse.