Аннотация:The paper deals with results of geological and geophysical study of the East Siberian Sea coastalareas. Research activities started in 2018 in the frame of the State Geological Mapping Project(GK-1000/3) and continued in 2022 under support of the Russian Science Foundation. A seismo-stratigraphic scheme of the Quaternary sediment sequence has been compiled, and a conception of the paleogeographical evolution in the Late Pleistocene–Holocene has been proposed.