Three hundred rivers flow into Lake Baikal, and only the Angara River flows out of it. Scientists from the Sochava Geographical Institute of the Russian Academy of Sciences have revised this almost certain geographical axiom.
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The institute is located in the city of Irkutsk on the Angara River. Its staff have studied the Lake Baikal basin in detail over the past twenty years and have concluded that the number of rivers that flow into it is greatly underestimated.
In reality, the number of these rivers and waterways is not three hundred, nor even 336 as counted in the 19th century by the geologist and geographer Ivan Chersky, but 966. This exact figure is cited by the Nauka.ru portal, quoting geographers in Irkutsk. The portal was established as part of the Science and Technology Decade initiative.
Researchers believe that accurately determining the number of Baikal's tributaries will help in the rational organization of water management systems and timely decision-making to prevent potential damage, because Baikal, as the world's deepest lake and largest natural reservoir of fresh water, is fed primarily by surface runoff, i.e., by streams and rivers that flow into it, and is dominated by the Selenga River.
It is worth noting that the geographical news with a statistical mathematical meaning came in the wake of the international environmental conference held on the shores of Lake Baikal and dedicated to the thirtieth anniversary of the inclusion of this unique natural body of water in the UNESCO World Heritage List.
Lake Baikal is the deepest and oldest lake in the world, and the largest natural reservoir of surface fresh water. Its main characteristics are as follows:
It is located in southeastern Siberia, Russia, within the Irkutsk region and the Republic of Buryatia.
They extend between latitudes 51°27′ North and 55°50′ North, and longitudes 103°41′ East and 109°57′ East.
Rift lake formed in a rift valley.
Approximately 636 kilometers from north to south
It ranges between 27 and 81 kilometers, with an average width of 48 kilometers.
31,722 square kilometers (or 32,170 square kilometers according to some sources).
2,677.84 kilometers.
455 meters.
1,642 meters, making it the deepest lake in the world.
about 730 meters.
23,615.39 cubic kilometers, which is equivalent to the combined volume of the five Great Lakes of North America.
Percentage of fresh water : It contains about 20% of the world's non-frozen surface fresh water.
Over 25 million years old, making it one of the oldest lakes on Earth.
The deepest lake in the world, and the largest freshwater lake by volume.
It was included in the UNESCO World Heritage List in 1996.
Hundreds of rivers and streams flow into it, the most important of which are the Selenga, Barguzin, Upper Angara, Turka, Sarma and Snezhnaya rivers.
Only the Angara River flows through it, which is a tributary of the Yenisei River.
Contains 98 islands and beaches, the largest of which is Olkhon Island.
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