thanks neo
it is called 'tongue river silicified sediment' or TRSS
better known as chert or gray chert
as you can see it was used quite a bit
BTW, did you see the oxbowpoint(I think) on the top row first image and the 3 single notch points in the second image
larson1951
Too cool, Larson. I was fortunate to grow up around some old guys who used to pick up arrowheads by the bucketsful and later went on to form the Oklahoma Anthropological Society. They had collections like you wouldn't believe.
thank you americus,
thank you, flintfinder man
thank you,brandy
thank you RGINN
thank you GEETAR MAN
thank you quito
and you too neo, srv and tnmts
and molly, flagal, archer, 37, uniface, pickaway
and everyone else
larson1951(guitar man jr)