In 1946, a tusk of Palaeoloxodon naumanni (Naumann's Elephant, named in honor of the geologist Heinrich Edmund Naumann, 1854–1927) was accidentally discovered. In 1962, excavations began at the edge and on the bottom of the lake. The location was a promontory known as Tategahana on the western shore.
In 1946, a tusk of Palaeoloxodon naumanni (Naumann's Elephant) was inadvertently unearthed. Excavations commenced in 1962 at the lake's edge and bottom, with the site situated on a promontory called Tategahana on the western shore.