Lake Undozero Lake Undozero Lake Undozero () is a freshwater lake, located in the west of Plesetsky District of Arkhangelsk Oblast in Russia. It is one of the biggest lakes in Arkhangelsk Oblast and the second biggest one in Plesetsky District. The area of the lake is , and the area of its basin is . Lake Undozero is the source of the Undosha River, which belongs to the river basin the Onega River and thus to the White Sea basin. The lake has a sophisticated shape and contains a number of islands. The source of the Undosha is in the south-western
Lake Kubenskoye lake. Administratively, the lake is divided between Vologodsky District (west), Sokolsky District (southeast), and Ust-Kubinsky District (east) of Vologda Oblast. In terms of the area, Lake Vozhe is the fourth natural lake of Vologda Oblast (behind Lake Onega, Lake Beloye, and Lake Vozhe) and the fifth lake (also behind the Rybinsk Reservoir). The area of the basin of the lake is . The basin occupies much of the central and northern parts of Vologda Oblast, as well as parts of Konoshsky District of Arkhangelsk Oblast. The major tributary of the lake is the Kubena River. The lake was settled by