Olyokma

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Olyokma
Yakut: Өлүөхүмэ
Olyokma river.jpg
View of the river
Olyokma is located in Sakha Republic
Olyokma
Location in the Sakha Republic, Russia
Location
CountryYakutia, Russia
Physical characteristics
Source 
 • locationMuroy Range, Olyokma-Stanovik Highlands
 • coordinates53°44′42″N 117°20′16″E / 53.74500°N 117.33778°E / 53.74500; 117.33778
 • elevation1,500 m (4,900 ft)
Mouth 
 • location
Lena
 • coordinates
60°22′27″N 120°40′40″E / 60.37417°N 120.67778°E / 60.37417; 120.67778
 • elevation
115 m (377 ft)
Length1,436 km (892 mi)
Basin size210,000 km2 (81,000 sq mi)
Discharge 
 • average1,990 m3/s (70,000 cu ft/s)
Basin features
ProgressionLenaLaptev Sea

The Olyokma (Russian: Олёкма, Olyokma, IPA: [ɐˈlʲɵkmə];[1] Yakut: Өлүөхүмэ, Ölüöxüme[1]) is a tributary of the Lena in eastern Siberia.

History[edit]

In the summer of 1631, Russian pioneer Pyotr Beketov entered the Olyokma during his first voyage down the Lena and in 1636 he founded the present-day city of Olyokminsk near the mouth of the river on the left bank of Lena.[2]

Yerofey Khabarov used this river's route to travel from the Lena to the Amur during his mid-17th century expeditions.[1]

Course[edit]

The river is 1,436 kilometres (892 mi) long, and has a drainage basin of 210,000 square kilometres (81,000 sq mi).[3] The Olyokma rises in the Muroy Range, Olyokma-Stanovik Highlands (Олёкминский Становик), west of Mogocha. It flows north through remote terrain before joining the Lena near Olyokminsk.[4]

To the west is the Vitim, to the south the Shilka and Amur, and to the east the upper Aldan. Its right tributary, the Tungir [Wikidata], leads to a portage to the Shilka. Other tributaries are the Nyukzha [Wikidata] and the Chara.[2]

River location
Basin of the Lena

See also[edit]

References[edit]

  1. ^ a b c "KNAB, the Place Names Database of EKI". Eki.ee. Retrieved 2013-01-01.
  2. ^ a b Олёкма // Great Soviet Encyclopedia, in 30 vols. / Ch. ed. A.M. Prokhorov . - 3rd ed. - M., 1969-197
  3. ^ Река Олёкма in the State Water Register of Russia (Russian)
  4. ^ Russian State Water Register - Olyokma River

External links[edit]