The complex study of the Sergino-2 hillfort on the Om river

The publication contains the information on the field studies Sergino-2 forthill located in the Baraba forest-steppe. In consequence of this work three asynchronous cultural layers were revealed, which are associated with the occupation of terraces. The upper horizon is relevant to the late (18-19 centuries) settling of the Baraba Tatars. To the chronology of these constructions points Russian easel ceramics, found in the single filling together with Tatarian. Such combination of the ceramic complexes is a kind of chronological indicator: it shows that aboriginal Baraba Tatars used Russian easel pottery for their needs. Second horizon is preliminary dated to the 16-17 centuries, and represents a medieval settlement, it included three dwellings and one household building. Ceramics is the most numerous artifacts, found in the upper layers of the site. This pottery is similar to Baraba Tatarian ceramics. The third level contained the hillfort of the Early Iron Age. In consequence of the investigation we uncovered a part of its defensive system, consisting of two ditches and one dwelling located outside of the fortified area. The cultural layer of the Early Iron Age includes minimum 7 fragments of clay moulds for celt casting, 8 bone and 2 bronze arrowheads along with ceramics. One of the arrowheads is three-bladed, rocket-like with a hidden sleeve, of so-called Kulaysky type. Such arrowhead are common among the sites of 5th -2nd centuries BC in the forest zone of Western Siberia and the Urals. A relatively small ceramic complex is presented by a thin-walled, slightly ornamented crockery, with round bottom, apparently. The area of the neck was ornamented by rows of large “pearls ”. Body was decorated in the same way. Crockery is similar to Sargat ceramics as well as to the materials of Rostovka burial ground; V.I. Matyushchenko related it to the Early Iron Age.