It is a part of the Central Siberian Plateau and it is made up mainly of the upper course section of the Vilyuy River.

Permafrost thickness up to 1,500 metres (4,900 ft), the largest in the world, was discovered under the Vilyuy Plateau.

[1][2] The Vilyuy Plateau is located both north and south of the Arctic Circle in northeastern Krasnoyarsk Krai and western Sakha Republic.

To the east the plateau descends gradually towards the broad Lena River valley and to the southeast it runs into the Central Yakutian Lowland, which leads to the Lena Plateau on the southern side.

[4] The major rivers having their source in the plateau are the Vilyuy, Markha, Olenyok, Ygyatta and Lakharchana, as well as the Akhtaranda —with the Alymdya and Olguydakh.