The exploration on the middle Shiderty river (Pavlodar region of the Republic of Kazakhstan)

We present here the results of survey, organized by common expedition of IAET SB RAS and National Museum of the Republic of Kazakhstan. The expedition worked at the territory of Ekibastuz district (Pavlodar Region) in the Middle Shiderty River in early June of 2015. Numerous small salty lakes with swamped coasts are nigh unto riverbed. In studies of district, special focus was on the highest areas, situated near the lakes. In the course of the works, the expedition found a few surface sites. Technico-typological analysis of this collection permit to preliminary relate it to different stages of Stone Age, to wide chronocultural range from Middle Paleolithic to Neolithic. Sarykamys-1, -2 and Bozshakol-1 are the most interesting and perspective for further research objects with the high concentration of the archaeological material. Their collections include the Levallois, narrow-faced and wedge-shaped cores, end-scrapers, borers, bifacial artifacts and others. These occurrences have the all features, common to workshops near or on the raw material outcrops. It is such features as predominance of debitage in the form of flakes and shatters, great number of the cores, and few in numbers and characterless tool assemblage. Positions of these sites demonstrate some consistent patterns: the key element for their localization is the presence of the outcrops with usable lithic raw material for system knapping, which are situated in the elevated and relatively flat grounds.