This paper provides information about exploring of the Stone Age at the site Novaya Kazanka 1 in sand dunes on the western shore of Lake Soraidyn by employees of Institute of Archeology named after A.Kh. Margulan. They worked on the monument in 2003 and 2005. 8 accumulations of stone artifacts were allocated on the monument. The pits laid at the site showed the absence of the buried cultural layer. Stone artifacts were made mainly of two types of raw materials – siliceous rock and quartzite sandstone. The typological description of the stone collection of accumulations at the Novaya Kazanka 1 site indicates their chronological diversity ranging from purely Mesolithic complexes to mixed Meso-Neolithic ones. The technique of primary splitting is represented by unit nuclei and fragments of small dimensions. The tools are represented by scrapers, mostly end-plates on fragments of plates, lamellar flakes, plates and fragments of retouched plates, geometric microliths (segments, trapeziums, and triangles) and others. The stone inventory of the accumulations at the Novaya Kazanka 1 site does not contradict the conclusions about the correlation of the monuments near Lake Soraidyn with the monuments of the «Istai group» of the Seroglazov culture, which is expressed both in raw materials preferences and in the technique of primary splitting, as well as in the collection of stone implements.