An article on an exhibit about the Lenape Nation at the University of Pennsylvania's Museum of Archaeology and Anthropology mentions that it includes a picture of a cairn and it sounds like it must be one from Oley Hills.
"A Werkheiser photograph of a distinctive cairn in eastern Berks is one of the first items visitors see when they enter the display area."
The article is here.
The museum article on the exhibit is here.
Something is not right. This message is just to keep things from messing up down the road