The Tolka (;
Selkup: Толь-кы) is a river in the
Yamalo-Nenets Autonomous Okrug
The Yamalo-Nenets Autonomous Okrug (; ) also known as Yamalia () is a federal subject of Russia and an autonomous okrug of Tyumen Oblast. Its administrative center is the town of Salekhard, and its largest city is Novy Urengoy. The 2021 Russian ...
,
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 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
Krasnoselkupsky District 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 ...
and swamps.
Course
The Tolka is one of the main tributaries of the Taz. It is formed in the
Siberian Uvaly hills, at the confluence of rivers Ai-Emtoryogan and Pyantymyogan. In its upper course the river heads roughly westwards across the
tundra
In physical geography, a tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: #Arctic, Arctic, Alpine tundra, Alpine, and #Antarctic ...
. After a long stretch it bends and
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 in a northeastern direction. Finally, south of the shore of lake
Lake Chyortovo
Lake Chyortovo or Lozil-To, also known as "Chertovo" (, meaning "Devil's Lake"; Selkup language, Selkup: Лозыль'-то) is a freshwater lake in Yamalo-Nenets Autonomous Okrug, Russia.Google Earth
The lake is a traditional sacred site for the ...
(Lozil-To), it bends eastwards, meandering until it meets the left bank of the Taz from its mouth in the
Taz Estuary
The Taz Estuary () is a long gulf formed by the Taz River. It consists of a roughly long estuary that begins in the area of the settlement of Tazovsky and ends in the Gulf of Ob, which is connected with the Kara Sea. Its average width is ab ...
of the Kara Sea.
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 ...
Tributaries
The main tributaries of the Tolka are the long
Varky-Chyuelky (Варкы-Чюэлькы) and the long
Kypa-Kelilky (Кыпа-Кэлилькы) on the left. There are numerous lakes and swamps in its basin, the largest of which are lakes Chyortovo and
Pyurmato. The river is frozen between mid October and mid May.
/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 ...
References
External links
Толька (река)К ИЗУЧЕНИЮ БИОЛОГИИ СИГОВЫХ РЫБ РЕКИ ТОЛЬКА (ТАЗОВСКИЙ БАССЕЙН, ЯНАО)
Rivers of Yamalo-Nenets Autonomous Okrug
Tributaries of the Taz
{{Siberia-river-stub