I recall a while back that someone had posted pictures of the 7&72 spot back in the '60s or '70s; I believe there was even a shot of a bear? although I could be wrong on that. Along with the pictures, there was info that stated that the area was a landfill for a time. I agree with you that it would have to have been dormant for quite a while, but I think several decades would be time enough to get to the way it is now. Does anyone else remember these pictures/info or am I just FOS?

Brian