Indian Breeze

I don't think this counts as geology, but these are holes made by Native Americans, probably the Iwaaypuk tribe, which was native to what we know as Felicita today. I tripped over this thing, but I think it did more damage to me than I to it.
It was in such a random place; I don't think many people know about it, and if they do, they probably don't know what it is. It's where they used to ground up their food.