Siligir

The Siligir (Russian: Силигир; Yakut: Силигир) is a river in Yakutia (Sakha Republic), Russia. It is the largest right tributary of the Olenyok with a length of 220 kilometres (140 mi) —344 kilometres (214 mi) long counting the Orto-Siligir stretch of its upper course. Its drainage basin area is 13,400 square kilometres (5,200 sq mi).[1]

Siligir
Силигир
Olenyok basin with the Siligir in the lower part.
Siligir is located in Sakha Republic
Siligir
Mouth location in Yakutia, Russia
Siligir is located in Russia
Siligir
Siligir (Russia)
Location
CountryRussia
Physical characteristics
Source 
 • locationCentral Siberian Plateau
 • coordinates67°06′44″N 113°05′44″E
 • elevation218 m (715 ft)
MouthOlenyok
 • coordinates
68°21′20″N 114°56′16″E
 • elevation
87 m (285 ft)
Length220 km (140 mi) (344 km (214 mi))
Basin size13,400 km2 (5,200 sq mi)
Discharge 
 • average70 m3/s (2,500 cu ft/s)
Basin features
ProgressionOlenyok→Laptev Sea

The river flows just north of the Arctic Circle across a lonely, desolate area of Olenyoksky District devoid of settlements.[2] There are very large bitumen deposits along the Siligir basin.[3][4]

Course

The Siligir is formed in the Central Siberian Plateau at the confluence of the 124 km (77 mi) long Orto-Siligir (Орто-Силигир) and the 100 km (62 mi) long Usuk-Siligir (Усук-Силигир).[1] The river flows initially northwards, bending to the NNE after a stretch, and then to the northeast.[5] Finally it bends again to the north and meets the right bank of the Olenyok 1,351 km (839 mi) from its mouth. The confluence is downstream of Olenyok village, one of the few inhabited localities of the area.[6] The river is frozen between early October and the second half of May.[7]

Tributaries

The Siligir has some very large tributaries, such as the 169 km (105 mi) long Onnyoo-Siligir (Russian: Онньоо-Силигир; Yakut: Өнньүө Силигир) and the 128 km (80 mi) long Siligirkeen (Силигиркээн), both from the left.[5][1]

Fauna

The main fish species found in the waters of the Siligir are lenok, taimen, grayling, pike and perch. In some stretches there are whitefish and nelma.[8]

See also

References
  1. "Река Силигир in the State Water Register of Russia". textual.ru (in Russian).
  2. Силигир / Great Soviet Encyclopedia: in 30 vols. / Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978
  3. East Siberian Bitumen Deposits
  4. R A French, Alan Wood, Christian R. Thauer, Helen Routledge. The Development of Siberia: People and Resources, p. 243
  5. "Топографска карта Q-49 50; M 1:1 000 000 - Topographic USSR Chart (in Russian)". Retrieved 29 April 2022.
  6. "Топографска карта R-49 50; M 1:1 000 000 - Topographic USSR Chart (in Russian)". Retrieved 29 April 2022.
  7. nature.ykt.ru (Силигир)
  8. Fishing trip on Siligir and Olenyok
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.