Ulakhan-Botuobuya
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]
| Ulakhan-Botuobuya Улахан-Ботуобуя | |
|---|---|
 Ulakhan-Botuobuya river and Tas-Yuryakh village Sentinel-2 image | |
  Mouth location in Yakutia, Russia | |
| Location | |
| Country | Yakutia, Russia |
| Physical characteristics | |
| Source | |
| • location | Lena Plateau |
| • coordinates | 61°03′40″N 111°06′03″E |
| • elevation | 419 m (1,375 ft) |
| Mouth | Vilyuy |
• coordinates | 62°57′11″N 112°47′12″E |
• elevation | 173 m (568 ft) |
| Length | 459 km (285 mi) |
| Basin size | 17,500 km2 (6,800 sq mi) |
| Discharge | |
| • average | 62 m3/s (2,200 cu ft/s) |
| Basin features | |
| Progression | Vilyuy→ Lena→ Laptev Sea |
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
- "Река Улахан-Ботуобуйа (Бол. Батуобия) in the State Water Register of Russia". textual.ru (in Russian).
- Google Earth
- Geographic Encyclopedic Dictionary: Geographic Names / A.F. Treshnikov (ed.) - 2nd ed., Ext. - M . Great Soviet Encyclopedia
- "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.
