ladykrampus reblogged
Five Island Lake, a pothole lake north of Emmetsburg in Palo Alto County that was formed during the last Ice Age, has undergone continual dredging to sustain its use for boating and recreation. Dredging in the late 1990s revealed fossilized bones and artifacts, which resulted in surveys and analysis by Bear Creek Archaeology. Artifacts dated from the Late Paleoindian to Historic periods, and included this orthoquartzite (Hixton silicified sandstone) biface. This lithic material comes from the edge of the Driftless area in west central Wisconsin, near Hixton and Black River Falls.