Lithics from chronologically diverse burials at Sopka-2, the Baraba forest-steppe, Western Siberia, were subjected to experimental use-wear analysis. We selected relatively well preserved specimens, suitable for microscopic examination and representing cultures such as Ust-Tartas, Odino, Krotovo, etc. Wear traces indicate the functions of tools and their places among the industries of the region. It was found that the tools had not been specially destined to be funerary items-they all display some wear and are well-suited for efficient use. Comparative characteristics of degree of wear are proposed. At the early stages, stone tools had been placed only in female burials, but at later stages they were distributed among Ьurials of females, children, and males. The findings provide a Ьasis for a functional and morphological typology of lithics used during that period.