Regarding the rod jokes, let me quote Rodney Dangerfield: “I got a million of ‘em”
This is a narrow ravine and in the mid 1800s there were some factories on this section.
As usual, I’d guess people have come to this place for thousands of years. Today the only remains of the factories are rock piles and the remains of dams which make great trout holes.
All of the sudden this shell heap appeared a few years ago. The water doesn’t normally go that high but in a big storm, it can.
I don’t think anyone else who goes by it gives it any notice.