This raises a perineal question I have wondered about for a long time. That head looks like it is in pretty good shape, as do a great many arrowheads that have been found from time to time. I have seen thousands of arrowheads mounted on boards in museums and private collections over the course of my life, and there are probably thousands more waiting to be found. How did they all end up being lost? Imagine the time it took and the value to a primitive hunter of an arrowhead or tomahawk head. I think of all the time I spend looking for a lost arrow, sometimes going back time after time to look again. Do you think they didn't go back to look for them in those days?
Anyway, I haven't seen that many tomahawk heads, so you might have quite a find!