Kolyma Mountains


The Kolyma Mountains or Kolyma Upland, is a system of mountain ranges in northeastern Siberia, lying mostly within the Magadan Oblast, along the shores of the Sea of Okhotsk in the Kolyma region. It constitutes the watershed between the basins of Kolyma River and of the Sea of Okhotsk / Pacific Ocean.
The range's highest point is Mount Nevskaya in the Omsukchan Range at.

Geography

The Kolyma Mountains stretch on a NW-SW alignment and consists of a series of plateaus and ridges punctuated by granite peaks that typically range between.
To the west and southwest the Upper Kolyma Highlands are bound by the Seymchan-Buyunda Depression to the north and the Ola river basin to the south. The Yukaghir Highlands, highest point Mount Chubukulakh, rise to the northwest, the Anadyr Highlands to the north and northeast and the Koryak Highlands to the east.

Subranges

Besides the Omsukchan Range, the system of the Kolyma Mountains comprises a number of subranges. Most are located in Magadan Oblast:
  • Korkodon Range, highest point
  • Kongin Range, highest point
  • Molkaty Range, highest point
  • Kilgan Massif, highest point
  • Maymandzhin Range, highest point
  • Kedon Range, highest point
  • Molongdin Range, highest point
The northernmost ranges are located in the Chukotka Autonomous Okrug
  • Kuryin Range, highest point
  • Oloy Range, highest point
  • Ush-Urekchen, highest point

    Hydrography

Many right tributaries of the Kolyma River have their sources in the northern and northwestern slopes of the Kolyma Highlands, including the Bakhapcha, Buyunda, Balygychan, Sugoy, Korkodon —with its tributary Bulun, and the Omolon —with its tributaries Molongda, Oloy, Kedon and Kegali.
The rivers originating in the southern and southeastern slopes of the mountain area flow into the Sea of Okhotsk and are shorter: Ola, Yama, Gizhiga, Paren and Penzhina.