The Deepest Lake on Earth
The deepest lake in the world is Lake Baikal, located in southern Siberia in Russia. At its deepest point, the lake plunges well over 1,600 metres down - far deeper than any other lake on the planet.
Old as Well as Deep
Lake Baikal is not only the deepest lake but also the oldest. Scientists estimate it is over 20 million years old, formed in an ancient rift where the Earths crust is slowly pulling apart. That same rifting process is what gives the lake its extraordinary depth, and the rift is still slowly widening today.
A Treasure of Fresh Water and Life
Lake Baikal holds a staggering amount of water - around a fifth of all the unfrozen fresh water on the surface of the Earth. It is also famous for its wildlife. Because the lake has been isolated for so long, most of the plant and animal species living in it are found nowhere else on Earth. Among them is the Baikal seal, the only seal species in the world that lives entirely in fresh water.
Source
This article was written using information from Wikipedia.