How it began
Mezhyrich is a village in the Cherkasy region of central Ukraine, near the point where the Rosava River flows into the Ros. Since 1966 at least four collapsed structures made of mammoth bones have been found there. A radiocarbon study reported in 2025 dated the building of the structures to between about 18,248 and 17,764 years ago, during the last Ice Age. Similar bone huts are known along the Dnipro valley, near Chernihiv, in Moravia and in southern Poland.
Before it existed
The builders worked during the last Ice Age, in harsh conditions of extreme cold and high wind, and used the material that was available to them. Considerable effort was needed to assemble the structures. Even when dry, large mammoth bones weigh hundreds of pounds. It was once suggested that the bones came from the slaughter of whole herds. A more likely explanation is that they were gathered from natural accumulations of bones, perhaps at the mouths of streams and gullies near the sites.
How it works
Each structure consists of several hundred mammoth bones and tusks, including skulls, ribs and long bones, arranged in a rough circle 6 to 10 meters across. A hearth usually lies near the center, and stone tools and other debris are scattered inside and outside. The frame was presumably covered with animal skins. Large pits filled with stone tools, bone fragments and ash lie near the houses.
What lasted
The huts have been described as perhaps the earliest surviving architecture and as early examples of monumental building. Their main purpose was probably shelter from extreme cold and high winds, though some archaeologists have argued that they also had social or religious meaning and reflect growing social complexity at the end of the Ice Age.
Where it stands today
The 2025 study concluded that the structures were probably temporary shelters and not permanent dwellings, and that the exact length of occupation remains uncertain without further sampling. Remains of one hut are kept under a protective structure at the site.
