not ball bearings. this is found 6 ft down on a natural ridge of land a few feet above river level surrounded by swamp. this was just a pocket of this oily mess under the blackjack/swamp mud about the same level I started hitting roots from the cypress trees that were removed to build the subdivision 30-40+ years ago. too deep to have been placed there by someone and not landfill material. I have found many things buried over the years, but this is the first time I've seen this. I asked another contractor that's excavated all over the area for twice as long as I have and he's never seen anything like this either. not like I'll lose sleep over it as the pool is already in the ground, but I am curious. I really thought I had found miniballs from the Civil War when I first saw them. here's a close-up of some.
