Averin V.A., Rykunov A.N., Rykunova I.I.

Key words: Mesolitic, seasonal site, boreal age, Butovo archaeological culture, flint assemblage.
The article analyzes the Mesolitic materials from the multilayer site of Ust’-Sheksna in the Yaroslavl oblast. The assemblage indicates a small dwelling-site (most probably seasonal). The artifacts have analogies among the materials of the Butovo archaeological culture, which appears to have existed in the Volga-Oka interfluve throughout the Mesolithic time. However, due to the lack of clear cultural determinant features we cannot confidently say that the assemblage belongs to the Butovo culture. The typological features of the inventory point to the boreal age of the site.