In the geo-information and geological studies of the last two years we has accumulated a sucient number of geophysical, morphological, mineralogical and petrographic materials to refer the Ladoga structure to the category of the "proven" astrobleme. The identification within the Ladoga structure of the volcanoplutonic complex, which is syngenetic to an astrobleme, allows us to classify this formation as a single impact-volcanic structure: Ladoga IVS