Lake Onega and Lake Ladoga, near Gulf of Finland – April 23rd, 2009
Russian lakes displaying various degrees of thaw are visible here, northeast of the Gulf of Finland (center left). The two largest are Lake Onega (top right) and Lake Ladoga (middle). The former is covered by snow and ice, while the latter has some ice ringing its shoreline and some gradually breaking apart in the center.
Lake Ladoga is a freshwater lake located in Republic of Karelia and Leningrad Oblast in northwestern Russia, not far from Saint Petersburg. It is the largest lake in Europe, and the 14th largest lake by area in the world.
The lake’s area is 17,891 km² (excluding its islands). Its length (north to south) is 219 km, average width is 83 km, average depth is 51 m, and maximum depth is about 230 m (in the north-western part).
Separated from the Baltic Sea by the Karelian Isthmus, it drains into the Gulf of Finland via the Neva River.
Lake Onega, on the other hand, has a surface area of 9,894 km², a volume of 280 km³, and a maximum depth of 120 m. It is the second largest lake in Europe, and the 18th largest lake by area in the world.
It is fed by 58 rivers, the main rivers being the Shuya, Suna, Vodla, Vytegra and Andoma.