Anadyr Highlands

The Anadyr Highlands (Russian: Анадырское нагорье, tr. Anadyrskoye Nagorye)[1] are a mountainous area in the Chukotka Autonomous Okrug, Far Eastern Federal District, Russia.

Anadyr Highlands
анадырское нагорье
Storm over Lake Elgygytgyn
Highest point
Elevation1,221 m (4,006 ft) 
Dimensions
Length600 km (370 mi)
Width300 km (190 mi)
Geography
Location in the Chukotka Autonomous Okrug, Russia
CountryRussia
Federal subjectChukotka Autonomous Okrug
Range coordinates67°0′N 170°0′E
Parent rangeEast Siberian System
Geology
Age of rockLate Paleocene and Eocene
Type of rockBasalt, andesite, dacite and Volcanic rocks

Geography

The Anadyr Highlands are one of the two main mountain regions of Chukotka Autonomous Okrug. They rise southwest of the Chukotka Mountains, in the western Chukotka region. Medium height mountain ranges stretch in roughly WNW/ESE direction west of a large plateau and in a SW/NE direction in the south. The highlands rise between the Chaun Lowlands in the north, the Anadyr Lowlands in the southeast, the Kolyma Mountains in the southwest and the Kolyma Lowlands, where the Kolyma River flows, in the west.[2]

Among the rivers that have their source in the mountains, the main ones are the Anadyr River flowing off the highland limits to the southeast as the Belaya, the Bolshoy Anyuy and the Maly Anyuy —flowing westwards on both sides of the Anyuy Range. The Enmyvaam flows southwards out of Lake Elgygytgyn, later joining the Belaya, while the Chaun River flows northwards from the northwestern edge of the crater of the lake.[2]

Anadyr Plateau

The main feature of the highlands is the Anadyr Plateau,[3] which forms most of the eastern part.

The Anadyr Plateau is roughly 400 kilometers (250 mi) long and about 150 kilometers (93 mi) wide. It is located in the latitude of the Arctic Circle and limited by the Pekulney Range to the east. The average height of the plateau surface is between 700 meters (2,300 ft) and 800 meters (2,600 ft). Lake Elgygytgyn, an impact crater lake is located in a roughly central position.[4] The plateau is largely covered with tundra and shrubs.[3]

Subranges

Besides the Anadyr Plateau, the system of the Anadyr Highlands comprises a number of subranges, including the following:[5]

  • Tainykot Range, highest point 1,189 metres (3,901 ft) —the northwesternmost
  • Rauchuan Range, highest point Mount Belaya, 1,649 metres (5,410 ft)
  • Ilirney Range, highest point Dvukh Tsirkov (Двух Цирков) 1,785 metres (5,856 ft)
  • Anyuy Range, highest point Blokhin Peak, 1,779 metres (5,837 ft)
  • Neuten Range, highest point 1,551 metres (5,089 ft)
  • Chuvanay Range, highest point Mount Chuvanay (гора Чуванаи), 1,614 metres (5,295 ft)
  • Kyrganay Range, highest point 1,415 metres (4,642 ft)
  • Pyrkanay Range, highest point 1,616 metres (5,302 ft)
  • Shchuchy Range, highest point 1,185 metres (3,888 ft)
  • Osinov Range, highest point 1,225 metres (4,019 ft)

References
  1. Геоморфология России (Geomorphology of Russia)
  2. Google Earth
  3. АНА́ДЫРСКОЕ ПЛОСКОГО́РЬЕ / Great Russian Encyclopedia; in 35 vol.] / Ch. ed. Yu.S. Osipov . - M .: Great Russian Encyclopedia, 2004—2017.
  4. Martin Melles, Pavel S Minyuk, Julie Brigham-Grette, The expedition El'gygytgyn Lake 2003 (Siberian Arctic). Ber. Polarforsch. Meeresforsch.
  5. Oleg Leonidovič Kryžanovskij, A Checklist of the Ground-beetles of Russia and Adjacent Lands. p. 16
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