No clue what this is found in backyard in pennsylvania.

[Kingofthekats]

I found arrowheads in the same area and mano as well.

[sneakygroundbuzzard]

looks like a rock to me

[Kentucky point]

I looks like something, I just don't know what. Unfinished bannerstone?

[OnewiththewilD]

Natural water smoothed rock IMO

[Broken Arrow]

I bet that could break some bones and knock off some pretty big spalls with ease... How rocky is the area where this was found?

[Kingofthekats]

Not really rocky its in a mountain area it was found in same area I found a black arrowhead in my backyard there is no creek just the woods.

[OnewiththewilD]

There could have been a waterway there in the past though or it could have been carried there and never used for anything possibly

[OnewiththewilD]

It’s a cool rock though I just zoomed in on it and checked it out good. It’s as smooth as one I’d find along the southern shore. Who knows? Maybe it was used for something?

[BabaORiley]

Yeah I agree with that thought Jay. It is possible that it was picked up and carried to a place with the thought of..."maybe I can use this"...I personally do that in my life very frequently. I will keep something with the thought that I will have a use for it but it usually ends up in the trash several months later. My point is that these ancients utilized resources much like we do. It is a piece that definitely catches the eye. Maybe just a rock that never was used for its intention or just another rock...lol...cool find anyway and I would have grabbed it also.