|Geographical location||Novgorod Oblast ( Russia )|
|Tributaries||Msta , Pola , Lowat , Psischa , Schelon|
|Places on the shore||Veliky Novgorod|
|Altitude above sea level|
|surface||982 km² on average (between 730 and 2,090 km²)|
|Maximum depth||10 m|
|Middle deep||3–4 m|
|Catchment area||67,200 km²|
The Ilmensee ( Russian Ильмень Озеро , Ilmen osero , Finnish Ilmajärvi ) is a lake in northwestern Russia between Moscow and Saint Petersburg . The old town of Veliky Novgorod is located on Lake Ilmen . Its water surface varies greatly between 730 and 2,090 km² . The maximum water depth usually fluctuates accordingly between 2.35 m and 5.8 m. The lake is at a height of about 18 m. The outflow is the Volkhov , which flows into Lake Ladoga after 224 kilometers .
South-east of Lake Ilmen, around 100,000 German soldiers were trapped by the Red Army for almost a year in the Demyansk basin in World War II since early 1942. In terms of military strategy, the successful supply of German troops from the air was, in the opinion of some historians, one of the causes of misjudgments in the question of supply and relief at the later Battle of Stalingrad .
- Ilmensee in the State Water Directory of the Russian Federation (Russian)
- Article Ilmensee in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D052965~2a%3DIlmensee~2b%3DIlmensee