In the late 19th and early 20th centuries, stray finds of
Stone Age artifacts were found on the shores of the lake. Further exploration revealed 190 finds from the shores of the lake and another fifty from the exposed bottom of the lake, including stone tools such as axes and adzes. Due to the large number of stone tools found in one place, it is believed that they were deposited there deliberately, as seen at other Stone Age sites in northern Europe and Russia. == References ==