I believe this is a nutting stone? It has a pit on both sides and is flat. The 3rd pic is from a Google search. It looks pretty similar.
I also found a broken one today.
I have found most of mine up on high ridges in ag fields. Once the crops get too high this year to look, I am going to spend some time in the cricks/rivers and see if I can find any that way. It seems people on youtube find lots in cricks/rivers, but I have never really looked.
Iowa State Nursery has a few of their Bottomland Bur Oaks left and they are 30% off. This is the same tree I have shown in this thread that I have gotten incredible growth out of. https://nursery.iowadnr.gov/Bottomland-Bur-Oak_p_209.html
How did your switch end up?
Is this switch? I seeded it with RC bigrock about a month and a half ago into an existing ag field that was bare soil. We received tons of rain which I think some of the switch washed to the edges. It only appears to be coming up in the areas I spread so I am...
Is this a tool of some sort? Seemed too perfect not to be something
Fossilized tooth, I assume cow?
Large scraper?
Another scraper
Crude Arrowhead/blade