Ulakhan-Botuobuya
Улахан-Ботуобуя
Ulakhan-Botuobuya river and Tas-Yuryakh village Sentinel-2 image
Ulakhan-Botuobuya is located in Sakha Republic
Ulakhan-Botuobuya
Mouth location in Yakutia, Russia
Location
CountryYakutia, Russia
Physical characteristics
Source 
 • locationLena Plateau
 • coordinates61°03′40″N 111°06′03″E / 61.06111°N 111.10083°E / 61.06111; 111.10083
 • elevation419 m (1,375 ft)
MouthVilyuy
 • coordinates
62°57′11″N 112°47′12″E / 62.95306°N 112.78667°E / 62.95306; 112.78667
 • elevation
173 m (568 ft)
Length459 km (285 mi)
Basin size17,500 km2 (6,800 sq mi)
Discharge 
 • average62 m3/s (2,200 cu ft/s)
Basin features
ProgressionVilyuy→ Lena→ Laptev Sea

The Ulakhan-Botuobuya (Russian: Улахан-Ботуобуя or Большая Ботуобуя; "Big Botuobuya"; Yakut: Улахан Ботуобуйа, Ulaxan Botuobuya) is a river in Yakutia (Sakha Republic), Russia. It is a right hand tributary of the Vilyuy, with a length of 459 kilometres (285 mi) and a drainage basin area of 17,500 square kilometres (6,800 sq mi).[1]

The river flows across mostly uninhabited territory of Mirninsky District. Botuobuyinsky Nasleg is located in its middle course. There is a pontoon bridge of the A331 highway stretch between Mirny and Udachny crossing the river just before its confluence with the Vilyuy.[2]

Course

The Ulakhan-Botuobuya begins in the Lena Plateau at an elevation of 317 metres (1,040 ft). It flows first roughly eastwards and then northeastwards across the Vilyuy Plateau within a wide valley. Finally it bends again and heads northwards. The smaller Ochchuguy-Botuobuya runs roughly parallel to it further to the east. Finally the Ulakhan-Botuobuya joins the right bank of the Vilyuy 1,294 kilometres (804 mi) from its mouth, a few miles downstream of the Vilyuy Dam. The river freezes between October and late May.[3]

The largest tributary of the Ulakhan-Botuobuya is the 58 kilometres (36 mi) long Tas-Yuryakh (Таас-Юрэх) that joins it from the right.[4]

See also

References

  1. ↑ "Река Улахан-Ботуобуйа (Бол. Батуобия) in the State Water Register of Russia". textual.ru (in Russian).
  2. ↑ Google Earth
  3. ↑ Geographic Encyclopedic Dictionary: Geographic Names / A.F. Treshnikov (ed.) - 2nd ed., Ext. - M . Great Soviet Encyclopedia
  4. ↑ "Топографска карта P-49, 50; M 1:1 000 000 - Topographic USSR Chart (in Russian)". maps.vlasenko.net. 20 October 2007. Retrieved 8 April 2022.
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