grinding stone

I just found this possible Native American artifact? It’s much bigger than other examples I’ve found in the past and this rock is very heavy to be a hammer. What is it? Are any of these examples looking good? Any information advise or help thanks?here is several stones I found that I believe to...

I would like confirmation that I found a grinding stone. I will be heartbroken if it is just an oblong river rock. It was found in a farm field in central Indiana. Obviously, it has been knocked around and scarred considerably by farm equipment. Also, a slab had been fractured off the...

I was out hunting Civil War relics today and stumbled across this possible Metate sticking out of small hump along the tree line where the hill starts to break over into a steep valley. The hump I think may have just been where a farmer had either pushed up or dumped some rocks and dirt from the...

Found over 100 ft from a stream off the James River In Eastern South Dakota (near Huron). Few pieces on top are difficult to show their qualities via photo; more to them than they appear. A bead in the center. Grinding stone. Etc. Welcome any and all input.

I found these two items on our old farm when I was 10 years old, that was over 30 years ago. We lived in northern Heard County in western Georgia. I know the Creeks lived there. Not sure about the Cherokee. The grinding stone has two pits on one side and one larger pit on the other and are...