Stone2

Three Clovis projectile points (arrowheads) presented above: “Silurian Chert (left), found ~ 1907 Waupaca Co. WI; Hixton Silicified Sandstone, found ~ Richland Co. WI 1897 (WI state vertebrate fossil); Hixton Silicified Sandstone found ~ Jackson Co. WI” Director UWSP Museum of Natural Hisory Ray Reser.