Misplaced Pages

Olyokma

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.

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

#933066

12-630: The river gives its name to the Olyokma-Chara Plateau , located to the west of its western bank. 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. Yerofey Khabarov used this river's route to travel from the Lena to

24-716: Is a 4,820-foot-high (1,469 m) peak in the D-7 sheet of the Defense Mapping Agency Navigation charts. The Irkutsk Oblast-Yakutia border runs across the middle of the Murun Massif and the peak rises on the western, or Irkutsk Oblast side. The massif is part of the Aldan Shield geological region. Charoite , a rare mineral, is found in the area. Other minerals, such as Brookite , Tausonite , Yuksporite and Frankamenite are also found in

36-545: Is a mountain in the Olyokma-Chara Plateau , at the border of Irkutsk Oblast and Yakutia , Russian Federation . A 1,454 m (4,770 ft) high summit is the highest point of the Murun Massif in the Olyokma-Chara Plateau, part of the South Siberian mountain system. The massif is about 20 km (12 mi) across and rises in the central/southern part of the plateau, above the right bank of

48-534: Is a mountainous area in the Sakha Republic and Irkutsk Oblast , Far Eastern Federal District , Russia. A small section is in Kalarsky District , northernmost Zabaykalsky Krai . Charoite , a rare mineral, is found in the Murun Massif area of the plateau, rising between rivers Chara and Tokko . The Olyokma-Chara Plateau is located to the south of the Lena , at the southwestern end of

60-500: The Aldan Shield geological region. The plateau is composed of the Lower Paleozoic limestones in its northern part, and in the southern by Precambrian metamorphic shales , with granite intrusions . The mountains of the highlands are covered by larch taiga in the lower and middle slopes. Siberian pine scrub and mountain tundra grow at higher altitudes. Murun Massif Murun ( Russian : Мурун )

72-566: The Amur during his mid-17th century expeditions. In the spring of 1649 Khabarov set off at his own expense up the Olyokma, then up its tributary, the Tungir and portaged to the Shilka River , reaching the upper Amur ( Dauria ) in early 1650. The river is 1,436 kilometres (892 mi) long, and has a drainage basin of 210,000 square kilometres (81,000 sq mi). The Olyokma rises in

84-707: The Chara , west of the valley of the Tokko , at the southwestern end of the Sakha Republic , bordering with Irkutsk Oblast , near the tripoint with Zabaykalsky Krai . The mountain is near Torgo , an abandoned settlement in Olyokminsky District . The Murun peak is marked as a 1,452-metre-high (4,764 ft) summit in the O-50 sheet of the Soviet Topographic Map. This same mountain, however,

96-770: The Muroy Range , Olyokma-Stanovik Highlands (Олёкминский Становик), west of Mogocha . It flows through remote terrain and cuts across the Kalar Range of the Stanovoy Highlands through a narrow valley. Further north, it bends around the eastern end of the Udokan Range and flows roughly north before joining the Lena near Olyokminsk . To the west flows the Vitim , to the south the Shilka and Amur, and to

108-596: The Stanovoy Highlands and to the north the Lena Plateau . To the east rise the Aldan Highlands and to the west the Patom Highlands . The size of the plateau is roughly 180 kilometres (110 mi) from north to south, and 200 kilometres (120 mi) from east to west. There are vestiges of ancient glaciation throughout the plateau area. The heights of the Olyokma-Chara Plateau are moderate,

120-629: The Sakha Republic in Olyokminsky District , and the eastern end of Irkutsk Oblast, Bodaybinsky District . The plateau is bound by the Chara River , a left tributary of the Olyokma river to the west and the Olyokma, a left tributary of the Lena, to the east. The Tokko River , the largest tributary of the Chara, crosses the uplands from south to north. To the south rises the Udokan Range of

132-405: The average elevations are between 500 meters (1,600 ft) and 600 meters (2,000 ft), although higher in the southern fringes. Mountains tend to be flat-topped, the highest point is Murun , a 1,452 metres (4,764 ft) high summit. The plateau is largely uninhabited. The settlement of Torgo , Olyokminsky District , was abandoned in 2010. Part of the Olyokma-Chara Plateau falls within

SECTION 10

#1732775457934

144-622: The east the upper Aldan . Its main tributaries are the Tungir , the Nyukzha and the Chara —with its tributary the Tokko . This Sakha Republic location article is a stub . You can help Misplaced Pages by expanding it . This article related to a river in the Russian Far East is a stub . You can help Misplaced Pages by expanding it . Olyokma-Chara Plateau The Olyokma-Chara Plateau (Russian: Олёкмо-Чарское плоскогорье ; Yakut : Өлүөхүмэ-Чаара хаптал хайалаах сир )

#933066