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(sĕlĕng-gä`), river, 616 mi (992 km) long, rising in the Khangai Mts., NW Republic of Mongolia, and flowing east, then north, across the Mongolian-Russian border to Lake Baykal; the Orkhon River is its main tributary. The Selenga, navigable from May to October, is Mongolia's chief river; its role as a transportation artery decreased with the advent of the Trans-Baykal RR. Ulan-Ude, an important Russian rail junction, river port, and industrial center, is the largest city on the river.



a river in the Mongolian People’s Republic and the Buriat ASSR. The Selenga is formed by the confluence of the Ider and Muren rivers and empties into Lake Baikal, creating a delta 680 sq km in area. Approximately half of the river water that enters Lake Baikal comes from the Selenga. The river is 1,024 km long from the source of the Ider River; 409 km of the lower course is in the USSR. It drains an area of 447,000 sq km. The main tributaries are the Egin-Gol and Orkhon in Mongolia and the Dzhida, Chikoi, Khilok, and Uda in the USSR.

The Selenga is primarily a flatland river, with narrow sections of the valley (to 1–2 km) alternating with troughlike wider sections (to 20–25 km) where it frequently divides into branches. It has low spring highwater, with flash floods in summer and fall caused by rain; the low-water period occurs in winter. The mean flow rate is 310 cu m per sec near the Mongolia-USSR border and 935 cu m per sec 127 km from the mouth. The river is frozen over from November through April. There is regular navigation to Sukhe-Bator in Mongolia. The capital of the Buriat ASSR, Ulan-Ude, is situated on the Selenga, as is the urban-type settlement of Selenginsk.


Kuznetsov, N. T. Gidrografiia rek Mongol’skoi Narodnoi Respubliki. Moscow, 1959.
Cherkasov, A. E. Vodnye resursy rek basseina Baikala, ikh ispol’zovanie i okhrana. Irkutsk, 1973.


References in periodicals archive ?
The training programme's first semester would last 33 months, Selenga said, adding most of Afghan youth were jobless and the programme would provide them work opportunity.
The Egiin Gol River is a tributary of the Selenga River and part of the watershed of Lake Baikal.
They did not, as had been customary, establish their capital in holy, Turk ground around the Orxon and Selenga rivers.
Its capital, Ulan Ude, lies astride the Selenga River.
In the third quarter of 1994 the shareholders of ADEX and Starmin agreed to transfer their respective interests in Selenga Mining to Tequila.
The territory around Lake Baikal features mountains, lowlands and plateaux, and includes the Watersheds of the Angara, Lena, Selenga, Barguzin, Vitim and other rivers.
Request for Quotation for Provision of Intercalibration of analytical procedures for analytes, included into harmonized program of hydrochemical monitoring for Selenga river
This investment in associated undertaking related to Selenga Mining Corporation
One of the main aims was the excavation of a burial site on a sedimentary shelf bordering the bed of the Egyin Gol river, a tributary of the Selenga, in the northwest of Mongolia (FIGURE 1).
Tenders are invited for Provision of Intercalibration of analytical procedures for analyses, included into harmonized program of hydrochemical monitoring for Selenga river basin.
The 40% investment in Selenga Mining Corporation ["SMC"] was recorded on an
Excavations are now being carried out in the 20 km of the Egyin Gol valley upstream from its junction with the Selenga.