Lake Sukhodolskoye Lake Sukhodolskoye Lake Sukhodolskoye (; ) is a narrow 40 km long lake on the Karelian Isthmus located in Priozersky District of Leningrad Oblast, Russia. It is a part of the Vuoksi River basin, constituting its southern armlet, and drained by Burnaya River. Originally waters of Lake Suvanto (Lake Sukhodolskoye) quietly flowed into Vuoksi through a waterway at Kiviniemi. However, in 1818 the channel that had been dug to drain spring flood waters from Suvanto into Lake Ladoga unexpectedly turned into Taipaleenjoki (Burnaya River), which started draining Suvanto and decreased its level by 7 m. The Kiviniemi waterway dried out.
Lake Ladoga 837 km (earlier estimated as 908 km). There are around 660 islands, with a total area of about 435 km. Ladoga is, on average, 5 m above sea level. Most of the islands, including the famous Valaam archipelago, Kilpola and Konevets, are situated in the northwest of the lake. Separated from the Baltic Sea by the Karelian Isthmus, it drains into the Gulf of Finland via the Neva River. Lake Ladoga is navigable, being a part of the Volga-Baltic Waterway connecting the Baltic Sea with the Volga River. The Ladoga Canal bypasses the lake in the southern part, connecting the