The Siberian soul was formed by the arctic desert, endless tundra, green taiga ocean and the father Yenisei - the pride of Krasnoyarsk region. Many people admire its power and beauty, but few know that Yenisei is one of the biggest rivers in Russia. Its length is 3487 km. It is the deepest river in the country, in some places the depth reaches 70 m. The width of Yenisei doesn't exceed 500-700 m, but when it joins Angara which is 3 times wider than Yenisei, it widens up to 2.5 km. but the widest part of the river is situated near the archipelago of Brekhovskie islands - 75 km.

The river occupies a vast territory. Its basin includes 184 000 lakes and more than 20 000 rivers. The basin is not symmetrical: the right part of it is 5 times bigger than the left. The biggest tributaries are Angara, Lower Tunguska and Podkamennaya Tunguska which flow into Yenisei from the right bank. There are few tributaries in the left part and they are not very big - Abakan, Sym, Elogui and Turuhan.

The biggest tributary is Lower Tunguska (2640 km), which starts its way on the northern slope of Upper Tunguska eminence, not far from Lena river. The lakes of Lower Tunguska basin are Vivi, Tembenchi, Lower Agata, Upper Agata, Nyagshinda and Pashkino. The stream of Lower Tunguska can fascinate everyone.

Another big Yenisei's tributary is Angara (1826 km). The name of the river comes from Evenkia. "Anga" means "an animal's jaws". It flows out of Baikal lake - one of the biggest lakes in the world. The depth of the lake is 1265 m. Its flora and fauna are unique (82% can be found only on the territory of the lake).

Podkamennaya Tunguska (1614 km) is also a big tributary of Yenisei. It is opened for navigation only in spring, in spite the fact that it is the only way to the Southern Evenkia.

Upper Yenisei's tributaries are much smaller. Abakan - 512 km, Kemchik - 323 km, Tuba - 121 km, Kan - 643 m.

Yenisei is a clear river. It is almost not affected by a man's activity, although dams changed its flow. There are several hydroelectric power stations built on Yenisei and its tributaries. The water is clear, almost not mineralized and is rich in oxygen which supports life. In the lower deep part of the river the water is rather muddled. But nevertheless light reaches lower water layers.

In 1960ies and 1970ies acclimatization of fish and flow regulation works were carried out on Yenisei. Some species of fish were introduced into the river deliberately. They are Baikal omul, bream, carp and the northern whitefish in Krasnoyarsk water basin; Siberian salmon, hunchback salmon and trout in the southern lakes of the region; other species have reached the river independently.

The results of acclimatization have greatly influenced fauna of many lakes and rivers of the Yenisei river. Nowadays the fauna includes 46 species of fish.