The slab (stela) was found during the excavations of an Okunevskaya culture barrow in the Ust'-Bur' village. The slab has an image of an anthropomorphic mask made with deep cut lines. It is made in traditions of Okunevskaya culture, early Bronze Age (end. III-II th. BP).
The stela was broken in ancient times and was used for building the cist of the barrow.