The Bulun (), also known as "Rassokha", is a river in

Magadan Oblast Magadan Oblast is a federal subjects of Russia, federal subject (an oblast) of Russia. It is geographically located in the Russian Far East, Far East region of the country, and is administratively part of the Far Eastern Federal District. Magadan ...

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 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, ...

of . The Bulun is the longest tributary of the

Korkodon The Korkodon (; ) is a river in Magadan Oblast, Russian Far East. It is a right tributary of the Kolyma, with a length of a drainage basin of . The upper reaches of the river are in Omsukchansky District, then it flows across the Srednekansky Di ...

, of the

Kolyma Kolyma (, ) or Kolyma Krai () is a historical region in the Russian Far East that includes the basin of Kolyma River and the northern shores of the Sea of Okhotsk, as well as the Kolyma Mountains (the watershed of the two). It is bounded to ...

basin. Its river basin is located in a discontinuous

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 ...

zone.Water of Russia - Булун
/ref> The river flows across an uninhabited area of the

Kolyma Mountains The Kolyma Mountains or Kolyma Upland (), is a system of mountain ranges in northeastern Siberia, lying mostly within the Magadan Oblast, along the shores of the Sea of Okhotsk in the Kolyma region. It constitutes the watershed between the ba ...

. Formerly there was a gold-mining settlement in its basin named Rassokha, but it was abandoned in the 1970s.

Course

The Bulun is a right tributary of the Korkodon. Its source is in a small lake of the western slopes of the Kongin Range. The river flows first in a northern direction, bending towards the northwest. As it leaves the mountainous area, it bends towards the southwest in a

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 ...

fringing the southern side of the

Yukaghir Highlands The Yukaghir Highlands () are a mountainous area in the Sakha Republic and Magadan Oblast, Far Eastern Federal District, Russia. The area is named after the Yukaghir people. Geography The Yukaghir Highlands are a mountain region located at the ...

. The river flows slowly in its last stretch

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 ...

ing strongly and the floodplain becomes wider, with swamps and

oxbow lake An oxbow lake is a U-shaped lake or stream pool, pool that forms when a wide meander of a river is meander cutoff, cut off, creating a free-standing body of water. The word "oxbow" can also refer to a U-shaped bend in a river or stream, whether ...

s. There are also numerous small

thermokarst lake Alas () is a shallow depression which occurs primarily in Yakutia, which is formed by subsidence of the Arctic permafrost owing to repeated melting and refreezing. An alas first develops as a shallow lake as melt water fills the depression. The l ...

s. At last the Bulun joins the right bank of the

from its mouth.

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 ...

The main tributaries of the Bulun are the long Vizualnaya, the long Nenkal and the long Aly-Yuryakh from the right, as well as the long Nelgyu from the left. The river is frozen between early October and late May. There is a winter road running along the left bank.

References

External links

Anadyr - Freshwater Ecoregions of the World
Rivers of Magadan Oblast {{Russia-river-stub

Course

See also

References

External links