Lake Ladoga territory. Ladoga became an internal Soviet basin once again. The northern shore, Ladoga Karelia with the town of Sortavala, is now part of the Republic of Karelia. The western shore, Karelian Isthmus, became part of Leningrad Oblast. Lake Ladoga Lake Ladoga ( or ; [earlier in Finnish "Nevajärvi"]; ; ) is a freshwater lake located in the Republic of Karelia and Leningrad Oblast in northwestern Russia, in the vicinity of Saint Petersburg. It is the largest lake entirely in Europe, and the 14th largest freshwater lake by area in the world. "Ladoga Lacus", a methane lake on Saturn's moon Titan,
Lake Sevan cultural monument is the Sevanavank monastery located on the peninsula, which was until the mid-20th century an island. Another prominent monastery at the western shore is Hayravank, and further south, in the village of Noratus, is a field of "khachkars", a cemetery with about 900 "khachkars" of different styles. Additional "khachkars" are found at Nerkin Getashen on the south coast. Sevan trout ("Salmo ischchan") is an endemic species of the lake, but it is endangered as some competitors were introduced into the lake, including common whitefish ("Coregonus lavaretus") from Lake Ladoga, goldfish ("Carrasius auratus"), and crayfish ("Astacus leptodactylus"). If the