Documentary scientific publication. The publication contains documents of a number of federal and local archives (the State Archive of the Russian Federation, the Russian State Archive of Socio-Political History, the Archive of the President of the Russian Federation, the State Archive of the Novosibirsk Region, the State Archive of the Tomsk Region), revealing the details of the Nazin tragedy and mass death of special settlers on a river island (Ob river) near the village of Nazino in the Aleksandrovsky district (modern Tomsk region)