Fun facts about Ob-Irtysh
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The internationally known name of the river is based on the Russian name Obʹ, possibly from Proto-Indo-Iranian *Hā́p- ('river, water').
Ob-Irtysh
Multiple
The Ob is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at 5,410 kilometres (3,360 mi). The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains.
From the “Names” section
Text from Wikipedia, CC BY-SA 4.0.
Photo: Dmitry Karyshev · CC BY 2.0
The Ob forms 25 km southwest of Biysk at the confluence of the Biya and Katun rivers.
Ob-Irtysh
Multiple
The Ob is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at 5,410 kilometres (3,360 mi). The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains.
From the “Geography” section
Text from Wikipedia, CC BY-SA 4.0.
Photo: Dmitry Karyshev · CC BY 2.0
The Ob is icebound at southern Barnaul from early in November to near the end of April.
Ob-Irtysh
Multiple
The Ob is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at 5,410 kilometres (3,360 mi). The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains.
From the “Geography” section
Text from Wikipedia, CC BY-SA 4.0.
Photo: Dmitry Karyshev · CC BY 2.0
The Ob provides irrigation, drinking water, hydroelectric energy, and fishing, hosting more than 50 species of fish.
Ob-Irtysh
Multiple
The Ob is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at 5,410 kilometres (3,360 mi). The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains.
From the “Human use” section
Text from Wikipedia, CC BY-SA 4.0.
Photo: Dmitry Karyshev · CC BY 2.0
In the lower reaches of the Ob, the maximum permissible concentrations of petroleum products are exceeded by 9–10 times.
Ob-Irtysh
Multiple
The Ob is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at 5,410 kilometres (3,360 mi). The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains.
From the “Pollution” section
Text from Wikipedia, CC BY-SA 4.0.
Photo: Dmitry Karyshev · CC BY 2.0