The North Siberian Lowland (Russian: Северо-Сибирская низменность, romanized: Severo-Sibirskaya nizmennost; Yakut: Хотугу Сибиир намтала, romanized: Xotugu Sibîr namtala), also known as Taymyr Lowland (Russian: Таймырская низменность, romanized: Taymyrskaya nizmennost), is a plain with a relatively flat relief separating the Byrranga Mountains of the Taymyr Peninsula in the north from the Central Siberian Plateau in the south.

[2] The North Siberian Lowland lies between the lower reaches of the Yenisey and Olenyok rivers in Krasnoyarsk Krai and Yakutia.

This lowland plain features flat-topped ridges approximately 200-300 m high, which rise over broad and heavily swamped degradations with a large number of thermokarst lakes.

[3] Rivers Pyasina, Taymyra, Kheta and Kotuy flow over the North Siberian Lowland, as well as further east the Khatanga, Popigay, Kuoyka, Beyenchime, Bur, Buolkalakh, as well as the Anabar with its tributaries the Suolama and Udya, and the Uele.

[citation needed] The climate is subarctic continental with long (7–8 months) cold winters and short cool summers.