Leningrad Oblast of two great lakes of the European Part of Russia, Lake Ladoga and Lake Onega. Its northeastern part, between the Gulf of Finland and Lake Ladoga, occupies the Karelian Isthmus. Some islands in the Gulf of Finland (including Kotlin, on which the city of Kronstadt has been built) and Lake Ladoga (including Konevets) also belong to the oblast. Much of the area of the oblast belongs to the drainage basin of the Neva, which is the only outflow of Lake Ladoga. Whereas the Neva, which flows to the Gulf of Finland (the city of Saint Petersburg is located in its
Finnish Ladoga Naval Detachment After the evacuations the light naval assets successfully protected the flank of the land front and repulsed Soviet attempts to penetrate to the northern part of the lake Ladoga until mid July when Soviet naval activity on the lake started to decrease. Majority of the ships and boats used by the Finns were evacuated overland to Finland after the Moscow Armistice. Listing (not necessarily exhaustive) of wartime vessels and their armament Finnish Ladoga Naval Detachment Finnish Ladoga Naval Detachment () was a Finnish naval unit stationed on Lake Ladoga between 1920-1940 and 1941-1944. The Treaty of Tartu was signed by