The Vasyugan Plain or Vasyuganye () is the vast area of the Ob-Irtysh interfluve that covers the basin of the Vasyugan river. It is part of the West Siberian Plain and lies within the Novosibirsk, Omsk, and Tomsk oblasts of Russia. To the south it transitions into the Baraba Steppe (Baraba Lowland).ВАСЮГА́НСКАЯ РАВНИ́НА, Great Russian Encyclopedia Most of its territory is occupied the Vasyugan Swamp.The Great Vasyugan Mire
The nearly circular area around Vasyugan is known as Vasyugan steppe or Vasyugan tundra.
The of area 614,803 hectares is in the middle of the plain,Васюганский established on December 16, 2017.Об учреждении государственного природного заповедника "Васюганский" It includes areas of the Vasyugan Swamp.
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