The Sellyakh ( or Сельлях; , ''Sielleex'') is a river in the
Sakha Republic
Sakha, officially the Republic of Sakha (Yakutia), is a republics of Russia, republic of Russia, and the largest federal subject of Russia by area. It is located in the Russian Far East, along the Arctic Ocean, with a population of one million ...
(Yakutia),
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
. It has a length of —counting the length of the Ilin-Sellyakh (Илин-Сыалаах) at its head— and a
drainage basin
A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...
area of .
The river flows north of the
Arctic Circle
The Arctic Circle is one of the two polar circles, and the northernmost of the five major circle of latitude, circles of latitude as shown on maps of Earth at about 66° 34' N. Its southern counterpart is the Antarctic Circle.
The Arctic Circl ...
, across territories of the
Ust-Yansky District
Ust-Yansky District (; , ) is an administrativeConstitution of the Sakha Republic and municipalLaw #172-Z #351-III district (raion, or ''ulus''), one of the thirty-four in the Sakha Republic, Russia. It is located in the north of the republic in ...
marked by
permafrost
Permafrost () is soil or underwater sediment which continuously remains below for two years or more; the oldest permafrost has been continuously frozen for around 700,000 years. Whilst the shallowest permafrost has a vertical extent of below ...
. The lower course of the river belongs to the Yana Delta
Ramsar wetland
The Ramsar Convention on Wetlands of International Importance Especially as Waterfowl Habitat is an international treaty for the conservation and sustainable use of Ramsar sites (wetlands). It is also known as the Convention on Wetlands. It i ...
site. There are no settlements along its course. The nearest town is Tumat.
Google Earth
Google Earth is a web mapping, web and computer program created by Google that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satelli ...
Course
The Sellyakh has its sources in the western part of the
Yana-Indigirka Lowland
The Yana-Indigirka Lowland (; ) is a large, low alluvial plain located in northern Siberia, Far Eastern Federal District, Russia.
Administratively most of the territory of the lowland is part of the Sakha Republic (Yakutia). There are inhabited ...
,
East Siberian Lowland
The East Siberian Lowland (), also known as Yana-Kolyma Lowland (),Oleg Leonidovič Kryžanovskij, ''A Checklist of the Ground-beetles of Russia and Adjacent Lands.'' p. 16 is a vast plain in North-eastern Siberia, Russia.Nuchcha. Its channel
meander
A meander is one of a series of regular sinuous curves in the Channel (geography), channel of a river or other watercourse. It is produced as a watercourse erosion, erodes the sediments of an outer, concave bank (cut bank, cut bank or river cl ...
s strongly and in its lower course the river turns north, its
floodplain
A floodplain or flood plain or bottomlands is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high Discharge (hydrolog ...
roughly parallel to the
Chondon
The Chondon (; ) is a river in Ust-Yansky District, Sakha Republic (Yakutia), Russia. It is long, with a drainage basin of .
The Chondon mammoth was discovered in 2013 in the Chondon basin, at the feet of the Polousny Range, 66 km south-west of ...
that flows northwards to the west. Finally the river ends in the Sellyakh Bay of the
Laptev Sea
The Laptev Sea () is a marginal sea of the Arctic Ocean. It is located between the northern coast of Siberia, the Taimyr Peninsula, Severnaya Zemlya, and the New Siberian Islands. Its northern boundary passes from the Arctic Cape to a point with ...
. It shares a common mouth system with the Bilir, to the southwest of the mouth of the Danilkina.
Tributaries
The main tributaries of the Sellyakh are the long Tut-Balyktakh (Туут-Балыктаах) and the long Syuyuryukteekh (Сююрюктээх) on the right, as well as the long Sygynastakh (Сыгынастаах) on the left. There are over 6,000 lakes in the Sellyakh basin. The river is frozen between early October and early June.nature.ykt - Селлях /ref>
See also
*
List of rivers of Russia
Russia can be divided into a European and an Asian part. The dividing line is generally considered to be the Ural Mountains. The European part is drained into the Arctic Ocean, Baltic Sea, Black Sea, and Caspian Sea. The Asian part is drained i ...