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 Vozhe the fourth lake (also behind the Rybinsk Reservoir). Historically, Lake Vozhe was on the trading route connecting the basings of the Volga and the Onega via the Sheksna River. There is one big island on the lake, Spassky Island. On the island, ruins of the former monastery are located. The only inhabited locality on the lakeshore is the village of Charonda which is a former trading settlement founded in the 13th century, currently having the population under ten and almost deserted. Charonda does not have all-seasonal land connections. Formerly, the village of Vasilyevskaya was located on the northern lakeshore. It