I’ve found a spear point with the top obviously broken, a couple of arrowheads and what looks like a knapped flint tool for pounding grain, etc-all were in/among the rocks of the riverbank after floods-everyone finds them out here near the river, especially where there are shallow caves in the cliffs above...
As a kid in north Mississippi I used to go into the freshly plowed fields near a creek after a spring rain and find arrowheads..................