Another questionable one

[Older The Better]

Had another 4 inch rain. Went out and checked my spots again and was walking up some of the little washes that are usually full of leaves and I found this stone. like the last one all the other stones in the wash didn’t look like this one. if you showed me this and it was smaller, I would confidently say it was a pecked grindstone. But with its size, it makes me wonder if it’s really anything at all or another weirdly weathered piece of