Mama River
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Location of Mama ( Мама ) in the catchment of Vitim
Template: Infobox River / Obsolete
Template: Infobox River / BILD_fehlt
Template: Infobox River / BILD_fehlt
The Mummy (Russian Мама ) is a 211 km ( with the longer source river left Mama 406 km ) long left tributary of the Vitim in eastern Siberia (Russia, Asia).
Course
The mom is produced in 439 m altitude in the Northern Baikal highlands in the northeast of Irkutsk Oblast from the headwaters left Mama ( Mama Lewaja ) and rights Mama ( Mama Prawaja ). Both rivers have their source on the northern flank of the 2,600 m high Upper Angaragebirges (also Werchneangarsker Mountains, part of the Stanowoihochlandes ) in the north of the Republic of Buryatia, the left Mama in about 1720 meters altitude, the rights Mama at about 1900 m.
Both source rivers flow through the highlands north of the Upper Angaragebirges mainly in northern and northeastern directions and reach near its confluence the Irkutsk Oblast. The Mama reserves the northern flow direction at by gradually becoming lower, now a highland region supporting Bergland, until finally in the same settlement ( and the administrative center of Rajons Mamsko - Tschuiski ) Mama in height of 207 m flows into the Vitim.
Most important tributaries of the actual mummy are Kawerga and Konkuderi (also Konkudera ) from the right. The most important tributary of the left Mama is the Maigunda from the left, the right Mama - the Dschjalokan from the right.
Hydrographic
The catchment area of 18,900 km ² comprises Mama. In estuaries near the river reaches a width of about 200 meters at a depth of 2 meters; the flow rate is in this case 2.0 m / s
The Mama freezes from October to May, followed by a precipitation depends strongly fluctuating, and September -lasting summer floods follows. The water management in the settlement Tschuktscha in mouth close of the annual average 343 m³ / s at a minimum of 40.6 m³ / s in March and a maximum of 1278 m³ / s in June.
Infrastructure and economy
The mom is navigable for 110 km from the mouth of the small left tributary Bramja and the homonymous small settlement to the mouth of the Vitim.
The through by the mom and their headwaters in the upper and middle reaches area is virtually uninhabited. In the lower reaches there are several settlements, which had its heyday in the mid-20th century in connection with the mica mining, as Lugowski and Slyudiyanka (of Russian sljuda for mica, not to be confused with the homonymous city Slyudiyanka on Lake Baikal ). Through these settlements leads along the river, a road that connects the administrative center Mum with the mining settlements around Gorno- Tschuiski and Sogdiondon in the valleys west of the adjacent Lena influx chuya and its tributaries.