Kolyma Mountains

The Kolyma Mountains or Kolyma Upland (Russian: Колымское нагорье, tr. Kolymskoye Nagorye) is a mountain range in northeastern Siberia, lying mostly within the Magadan Oblast, along the shores of the Sea of Okhotsk in the Kolyma region.[1] The range's highest point is Mount Nevskaya (гора Невская) in the Omsukchan Range at 1,828 meters (5,997 ft).[2]

Kolyma Mountains
Колымское нагорье
Mountains in the Tenkinsky District
Highest point
PeakGora Nevskaya
Elevation1,828 m (5,997 ft)
Dimensions
Length1,300 km (810 mi)
Geography
Location in the Far Eastern Federal District, Russia
CountryRussia
Oblast/Okrug/KraiMagadan, Chukotka and Kamchatka
Range coordinates63°N 159°E
Parent rangeEast Siberian System
Geology
Age of rockJurassic, Triassic, Permian and Proterozoic
Type of rockGranite, Gneiss, Schist, Siltstone and Sandstone

Geography

The Kolyma Mountains stretch 1,300 kilometers (810 mi) on a NW-SW alignment and consists of a series of plateaus and ridges punctuated by granite peaks that typically range between 1,500 to 1,800 meters (4,900 to 5,900 ft).[3] The Yukaghir Highlands rise to the northwest and the Anadyr Highlands to the north and northeast.[4]

Subranges

Besides the Omsukchan Range, the system of the Kolyma Mountains comprises a number of subranges.[5][3][6] Most are located in Magadan Oblast:

  • Nenkoi Range
  • Korkodon Range, highest point 1,884 metres (6,181 ft)
  • Kongin Range
  • Molkaty Range
  • Korbendya Range
  • Maymandzhin Range, highest point 1,809 metres (5,935 ft)
  • Kedon Range, highest point 1,661 metres (5,449 ft)
  • Molongdin Range, highest point 1,644 metres (5,394 ft) (the eastern end is in Kamchatka Krai)
  • Icheghem Range, highest point 1,465 metres (4,806 ft), partly in Kamchatka Krai

The northernmost ranges are located in the Chukotka Autonomous Okrug

  • Kuryin Range (Kurinsky Range), highest point 1,030 metres (3,380 ft)
  • Oloy Range, highest point 1,816 metres (5,958 ft)
  • Ushurekchen Range, highest point 1,685 metres (5,528 ft)

Hydrography

Many right tributaries of the Kolyma River have their sources in the northern and northwestern slopes of the Kolima 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: Arman, Ola, Yana, Yama, Taui, Gizhiga, Paren and Penzhina.[3]

Mountains in Khasynsky District.
View of the Omsukchan Range from Dukat Mine.

References
  1. "Kolyma Upland". Encyclopædia Britannica. July 20, 1998.
  2. Sedov RV, Kolyma highland / Hvorov A. Yu . - Khabarovsk, 2003. - p. 418. - ISBN 5-901725-05-0 .
  3. "Колымское нагорье" [Kolyma Highlands]. Great Soviet Encyclopedia (in Russian) (3rd ed.). 1969–1978.
  4. Google Earth
  5. Oleg Leonidovič Kryžanovskij, A Checklist of the Ground-beetles of Russia and Adjacent Lands. p. 16
  6. Wetlands in Russia - Vol.4


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