Perhaps Lake Baikal or The Caspian Sea.
Lake Baikal.
If you don't know it is Lake Baikal
Lake Baikal
Lake Baikal
Lake Baikal is not on the territories of Mongolia. The deepest will be Khuvsgul Lake.
The deepest lake in the world is Lake Baikal which is 1642 meters deep. It is located in Russia.
lake Baykal
Lake Baikal in Siberia, Russia, is the world's deepest fresh water lake at 1,638 metres deep. It is 636 km long and is the world's sixth largest lake and 1,181 metres of it is below sea level. It contains 20% of the world's fresh water which is so clear that divers suffer from vertigo. Based on sediment at the bottom is also the world's oldest lake at 25 million years, based on an ancient fault, the Olkhon Crevice.
The largest freshwater lake (by area) is Lake Superior. The largest lake by volume and the deepest lake in the world is Lake Baikal in Russia.
The largest freshwater lake (by area) is Lake Superior. The largest lake by volume and the deepest lake in the world is Lake Baikal in Russia.
Lake Baikal is in eastern Russia, just north of Mongolia
Baikal, is the largest freshwater lake by volume in the world, and the deepest.