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The Moma (russian: Мома; sah, Муома) is a river in
Yakutia Sakha, officially the Republic of Sakha (Yakutia),, is the largest republic of Russia, located in the Russian Far East, along the Arctic Ocean, with a population of roughly 1 million. Sakha comprises half of the area of its governing Far Eas ...
in
Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
, a right tributary of the Indigirka. The length of the river is , the area of its drainage basin is . The extinct
cinder cone A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions o ...
volcanoes
Balagan-Tas Balagan-Tas ( sah, Балаҕан Таас, russian: Балаган-Тас) is a cinder cone volcano in Russia. It was discovered by V.A. Zimin in 1939 and is one of the main features of the Moma Natural Park. Description This volcano is located i ...
and Uraga-Tas are some of the main features of the
Moma Natural Park Moma Natural Park or Moma Nature Park (russian: Момский природный парк, ''Momsky Pryrodny Park''; sah, Аан Айылгы, ''Aan Aiylgy'') is a protected area of the Momsko-Chersk Region of Yakutia in the upper part of the Mo ...
.Moma Natural Park Official site
/ref>


Course

The Moma originates from Lake Sisyktyah on the northern slope of the
Ulakhan Chistay Range The Ulakhan-Chistay Range (russian: Улахан-Чистай; sah, Улахан Чыыстай сис) is a range of mountains in far North-eastern Russia. Administratively the range is part of the Sakha Republic of the Russian Federation.''Ula ...
, the highest subrange of the
Chersky Range The Chersky Range (, ) is a chain of mountains in northeastern Siberia between the Yana River and the Indigirka River. Administratively the area of the range belongs to the Sakha Republic, although a small section in the east is within Magadan ...
.''Ulakhan Chistay'' /
Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Bolshaya rossiyskaya e ...
; in 35 vols. / Ch. ed. Yu. S. Osipov. 2004—2017.
The river flows in the wide
intermontane basin Intermontane is a physiographic adjective formed from the prefix " inter-" (''signifying among, between, amid, during, within, mutual, reciprocal'') and the adjective "montane" (inhabiting, or growing in mountainous regions, especially cool, moi ...
separating the Ulakhan Chistay Range from the
Moma Range The Moma Range (russian: Момский хребет, ''Momsky Khrebet''; sah, Муома сиһэ) is a range of mountains in far North-eastern Russia. Administratively the range is part of the Sakha Republic of the Russian Federation.''Momsky ...
in the north and flows into the Indigirka about from its mouth. There are black coal deposits in the river basin. The district centre – the village of
Khonuu Khonuu (russian: Хонуу; sah, Хонуу, ''Xonuu'') is a rural locality (a '' selo'') and the administrative center of Momsky District in the Sakha Republic, Russia, located on the right bank of the Indigirka River. Population: Geography K ...
– is located at the mouth of the river.


Etymology

The name comes from the
Evenki language Evenki (Ewenkī), formerly known as Tungus or Solon, is the largest member of the northern group of Tungusic languages, a group which also includes Even, Negidal, and the more closely related Oroqen language. The name is sometimes wrongly given ...
, “мома” means "wood, timber, tree". This is the name for the rivers with steep, easy to wash banks that crumble together with trees growing on them, cluttering the river bed.


Hydrology

Rain, snow and ice feed the river. It freezes in October, the ice breaks up in late May – early June. In the middle and lower courses the river bed abounds rocky rapids, icing is typical. The average annual water consumption – from the mouth – is . The river is not navigable.


See also

*
Balagan-Tas Balagan-Tas ( sah, Балаҕан Таас, russian: Балаган-Тас) is a cinder cone volcano in Russia. It was discovered by V.A. Zimin in 1939 and is one of the main features of the Moma Natural Park. Description This volcano is located i ...


References

Rivers of the Sakha Republic {{Russia-river-stub