Thank you. I was up there tonight after work looking at the parking areas here:
http://maps.google.com/maps?q=40.9444,-74.49301&num=1&gl=us&t=m&z=19
and here.
http://maps.google.com/maps?q=40.931748,-74.485814&num=1&gl=us&t=m&z=18
I gather to get from one to the other the path is over the hill.