What Is the Deepest Lake in the World?


Quick Answer

Lake Baikal in Siberia in Russia is the deepest lake in the world with a depth of 5,387 feet, or 1,642 meters. It also holds the greatest volume of freshwater of any lake in the world, containing approximately 20 percent of the world's unfrozen surface freshwater.

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Full Answer

Lake Baikal is in the southern region of Siberia between the Irkutsk Oblast and Buryat Republic. It has a long, crescent shape because it is a rift lake. It is thought to be the world's oldest lake, at 25 million years of age. Its ecosystem is unique, as more than two-thirds of the species of plants and animals in Lake Baikal are found nowhere else in the world.

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