in situ native american arrowhead artifact found in sand bed of a river

america american ancient archeology arrow arrowhead artifact artifacts assorted authentic bar bed bow carved chert civilization clovis covered culture discovery fight flint found gravel half handmade head historic history hunt indian indigenous knife level low native old past point primitive projectile protect relic river riverbed rock rocks sand sandbar sharp situ spear spearhead stone symbol symbolic tool treasure tribal viewpoint vintage weapon