Cueva del Milodón Natural Monument is a Natural Monument that It comprises several caves and a rock formation called Silla del Diablo (Devil’s Chair).
Milodon Cave is the 200 metres (660 ft) long, t was discovered in 1895 by Hermann Eberhard, German explorer of Patagonia. He found a large, seemingly fresh piece of skin of an unidentified animal. In 1896 the cave was explored by Otto Nordenskjöld and later it was recognized that the skin belonged to Mylodon – an extinct animal which died 10,200 – 13,560 years ago.