Lake Baykal is positioned in southeastern (Siberia) Russia, directly to the north of Mongolia.
Recognized as the oldest (still existing) freshwater lake on the planet, it is also measured as the deepest continental body of water at 5,315 feet (1,620 m).
In addition, it is the largest freshwater lake by volume, containing an astounding 20% of the planet's fresh water.
With a maximum width of 60 miles (96 km), Lake Baykal is about 389 miles (626 km) in length.
Completely surrounded by mountains, over 300 rivers and streams drain into this massive lake.