The radiocarbon dates of burials Dyupsinsk, Pokrovsk II and ritual pits of Chapel site permit to date the cultural complexes, which are positioned as an early stage of the Iron Age in Yakutia. This dating of the complexes is testified by a comparative typological analysis of burial's equipment (which is similar to the material of Tsepansk culture of the Northern Angara region (VIII-II centuries BC.). These dates determine the chronological boundaries of this complex within the VIII-III centuries BC, which already gives radiocarbon reasoning and justification of comparative-typological comparison with the materials of Tsepansk culture mentioned above. Generally this time period coincides with the Scythian epoch.