This was found in NW Indiana. We have a lot of artifacts on the farm, so I am thinking there was a camp here. No idea what this is or would be used for.
I’d like it a lot more if it had a groove or a battered end, seems large for a hand tool. Maybe a glacial drop stone? I assume it’s not like other rocks in the area
Used for whatever a smooth roundish rock was desired for...
Heat in fire/coals and put in a stomach to cook something?
Heated and brought in a lodge on a cold night?
Fire ring inside or outside...
Sanding.
Smashing.
Cracking mast.
Cracking heavy bones to extract marrow.
Reducing dried meat to make pemmican.
I believe that may be what we call a 'wok': a large stone with no evidence of working, used as a native American hunting weapon and utility tool. Woks were thwown at wabbits from paleo times onwards.
Seriously though, we would need to see some close-up evidence of it having been worked or exhibiting some use-wear for it to have credibility as an artefact. And welcome, too.