A little contribution

[Older The Better]

Had an ideal rain, heavy after a long dry spell so it could really move some dirt, unfortunately the leaves really started coming down a few weeks before, I tried my spots anyway and couldn’t see much through the leaves. I hit my site on top of the bluff and decided to slide down the face to see if anything had washed over the edge. Also a bit of a shortcut to another spot. Surprisingly it was the only thing I found outside of a few flakes.
Here’s the area tried to get the slope

Insitu

I’ve Been looking it over and I keep leaning towards a larger piece that has been resharpened, the two sides are pretty well made and it shows pressure flakes all the way around, even on the thick edge. If it was stacked and abandoned I don’t think you’d have several directional flakes on the thick edge and I don’t think you’d spent time refining the other edges. And in my experience scrapers aren’t triangular.

 

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[Rockdog]

I agree with your leaning. I think it was a broken larger piece that has been reworked.

 

[Older The Better]

I’ll have to look into larger triangular forms, found a lot of triangular arrowheads but nothing over the size of a quarter with that shape