Qualla: West Siberian Plain

West Siberian Plain: Introduction

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Sergoman Uwe Dedering (подложка). The original uploader was Sergoman at Russian Wikipedia., CC BY-SA 3.0. A fifty-meter rise in sea level would drown everything between the Arctic Ocean and the confluence of the Ob and Irtysh rivers near Khanty-Mansiysk. That fact tells you almost everything you need to know about the West Siberian Plain. Covering roughly 2.7 million square kilometers, about one-third of all Siberia, this is flatness on a scale that defies intuition. From the Ural Mountains in the west to the Yenisei River in the east, from the Arctic Ocean in the north to the Altai Mountains in the southeast, the land barely rises, barely falls, and barely drains. It is one of the largest swamp systems on Earth, and beneath it sits one of the largest petroleum basins.

Read more: West Siberian Plain on Qualla

Image: Sergoman Uwe Dedering (подложка). The original uploader was Sergoman at Russian Wikipedia. | CC BY-SA 3.0

West Siberian Plain: Flat Beyond Comprehension

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit User:InvictaHOG, Public domain. The West Siberian Plain extends 2,500 kilometers from north to south and reaches a maximum width of 1,500 kilometers in the south. Five major rivers cross it from west to east: the Irtysh, Ob, Nadym, Pur, and Taz. The Yenisei, which forms the eastern boundary, discharges nearly 2...

Read more: West Siberian Plain on Qualla

Image: User:InvictaHOG | Public domain

West Siberian Plain: The Great Swamp

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Dmitry A. Mottl (photographer) & User:Tom_dl, CC BY-SA 3.0. Poor drainage defines the plain. Soils are mostly peaty Histosols, and in the treeless north, Histels, permanently frozen organic soils. The region contains some of the world's largest peatlands, characterized by raised bogs that hold water like enormous sponges. The Vasyugan Swa...

Read more: West Siberian Plain on Qualla

Image: Dmitry A. Mottl (photographer) & User:Tom_dl | CC BY-SA 3.0

West Siberian Plain: Eight Worlds Stacked North to South

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Arthur Jameson, CC BY-SA 3.0. The plain contains eight distinct vegetation zones arranged in latitudinal bands: tundra, forest-tundra, northern taiga, middle taiga, southern taiga, sub-taiga forest, forest-steppe, and steppe. Animal species count rises from at least 107 in the tundra to 278 or more in the for...

Read more: West Siberian Plain on Qualla

Image: Arthur Jameson | CC BY-SA 3.0

West Siberian Plain: Sixty-Five Million Years of Sinking

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Uwe Dedering, CC BY-SA 4.0. Geologically, the West Siberian Plain is a region of prolonged crustal subsidence. The bedrock consists of horizontal deposits laid down over 65 million years of the Cenozoic era, buried under alluvial sediments that accumulated as the crust slowly sank. During ice ages, massive ...

Read more: West Siberian Plain on Qualla

Image: Uwe Dedering | CC BY-SA 4.0

West Siberian Plain: The Engine Room of Russia

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Benutzer:Carroy (Benutzer:YPS), Public domain. Beneath the swamps and permafrost lies the resource base that powers modern Russia. The West Siberian petroleum basin holds vast reserves of oil and natural gas, with major cities like Surgut and Nizhnevartovsk existing solely because of extraction. Chelyabinsk, Novosibirsk, Omsk...

Read more: West Siberian Plain on Qualla

Image: Benutzer:Carroy (Benutzer:YPS) | Public domain