Mal’ta (ca. 20,000 B.C.) – The Metropolitan Museum of Art https://www.metmuseum.org/essays/malta-ca-20000-b-c
The site of Mal’ta, for which the culture is named, is composed of a series of subterranean houses made of large animal bones and reindeer antler.
animal skins and sod to protect inhabitants from the severe, prevailing northerly winds