In some areas of the East Siberian Mountains, such as the Kisilyakh Range and the Oymyakon Plateau there are kigilyakhs, the rock formations that are highly valued in the culture of the Yakuts.

[2] The East Siberian System consists of several separate sections of mountain ranges rising to the north and south of the Arctic Circle.

The main group of ranges stretches for a distance of nearly 3,000 kilometres (1,900 mi) from the Lena River valley to Cape Dezhnyov, at the eastern end of the Chukotka Peninsula.

Although it reaches a width of roughly 1,200 kilometres (750 mi), the highland region is almost cut in half by the East Siberian Lowland that stretches to the north in the central area.

[6] Rivulets and humid areas in lower altitudes of most of the ranges of the system provide a habitat for the Siberian Salamander,[7] a species known for surviving deep freezes —as low as −45 °C (−49 °F).