Presents the results of the archaeological studies of multilayer site Elovka-Nugan I (Tunka Valley), conducted in 2014–2015. In order to determine the boundaries of the spread of archaeological material and promising areas for research 9 prospecting pits were laid. The deposits of floodplains and the first terrace of the Irkut of mostly Holocene were discovered. Archaeological material was recorded in multilayer system that allows to allocate separate cultural levels for which it was received a series of ¹⁴C-dates. The Neolithic complexes repre-sent a particular interest: from early Net-impressed and Khaita pottery (~7–6 ka BP), jewelry pearl items (~5.2–5 ka BP or ~6,1–5.7 ka cal BP). Founded shattered bones of deer with han-dling traces in the Early Holocene sediments of the first terrace of the Irkut (~8.6–8.2 ka BP or ~9.6–9 ka cal BP) are likely to mark the presence of the Mesolithic complexes. To our mind, the expansion of excavation areas and receiving additional ¹⁴C-dates would locate the Elovka-Nugan I as the first basic Holocene geoarchaeological object of the Tunka Valley.