Obva
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Obva
The Obva (Russian: Обва) – is a river in Perm Krai, Russia, a right tributary of the Kama. It starts in the Upper Kama Upland, in the west part of Sivinsky District, near the border of Kirov oblast. It flows into Kama Reservoir, from the confluence of the Kama and the Volga. It is long, and its drainage basin A drainage basin is an area of land where 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, ... covers .«Река ОБВА»
Russian State Water Registry
The Obva is frozen from late October to late April or early May.


References

Rivers of Perm ...
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Upper Kama Upland
Upper Kama Upland (russian: Верхнекамская возвышенность) is an elevation in the headwaters of Kama and Cheptsa rivers, located on the area of Udmurt Republic, Perm Krai and Kirov Oblast, Russia. On the east slopes start such right tributaries of Kama River as Kosa, Inva and Obva; on the other side of the watershed is the source of Kama. The height of the relief in the most elevated part of the upland reaches 300–335 m (highest point in mount Krasnoyar (Kirov Oblast'), 337 m). Average elevations are 240–280 m. The upland has a boreal climate (Köppen: Dfc, bordering on Dfb). The average temperature for January is about -15-16°C, for July is about +16+17°C, and the annual temperature is about 0+1°C. The annual precipitation is 550–650 mm. There are oil reserves in the depths of upland: the largest fields are Krasnokamsk and Mishkinskoye. Considerable reserves of peat. Most of the upland is covered by coniferous forests. The most important ...
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Kama (river)
The Kama (russian: Ка́ма, ; tt-Cyrl, Чулман, ''Çulman''; udm, Кам) is a long«Река КАМА»
Russian State Water Registry
river in . It has a drainage basin of . It is the longest left tributary of the and the largest one in discharge. At their confluence, in fact, the Kama is even larger than the Volga. It starts in the Udmurt Republic, near
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Perm Krai
Perm Krai (russian: Пе́рмский край, r=Permsky kray, p=ˈpʲɛrmskʲɪj ˈkraj, ''Permsky krai'', , ''Perem lador'') is a federal subject of Russia (a krai) that came into existence on December 1, 2005 as a result of the 2004 referendum on the merger of Perm Oblast and Komi-Permyak Autonomous Okrug. The city of Perm is the administrative center. The population of the krai was 2,635,276 according to the ( 2010 Census). Komi-Permyak Okrug retained its autonomous status within Perm Krai during the transitional period of 2006–2008. It also retained a budget separate from that of the krai, keeping all federal transfers. Starting in 2009, Komi-Permyak Okrug's budget became subject to the budgeting law of Perm Krai. The transitional period was implemented in part because Komi-Permyak Okrug relies heavily on federal subsidies, and an abrupt cut would have been detrimental to its economy. Geography Perm Krai is located in the east of the East European Plain and the ...
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Sivinsky District
Sivinsky District (russian: Си́винский райо́н) is an administrative district (raion) of Perm Krai, Russia; one of the thirty-three in the krai.Law #416-67 Municipally, it is incorporated as Sivinsky Municipal District.Law #1740-357 It is located in the west of the krai. The area of the district is .Encyclopedia of Perm KraiEntry on Sivinsky District Its administrative center is the rural locality (a '' selo'') of Siva. Population: The population of Siva accounts for 31.4% of the district's total population. Geography The highest point of the district is above sea level. The Obva River flows through the district. Climate is continental with average annual temperature of . One-third of the territory is forested. The district has the least favorable geographical position within the krai, because it situated far from the main economic centers. History The district was established in January 1924. It was abolished on February 1, 1963 but restored on January& ...
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Kama Reservoir
The Kama Reservoir, also known as the Perm Reservoir (russian: Камское водохранилище, Пермское водохранилище), is a reservoir formed by the dam of the Kama Hydroelectric Station near Perm (constructed in 1954-1956). The Kama Reservoir has a surface area of 1,915 km² and a water volume of 12,2 cubic km. Its length along the Kama is 272 km, major width - up to 30 km, average depth - 6,3 m (with maximum depth equaling 30 m). The Kama Reservoir was created for the benefit of transportation, energetics, and water supply. It also performs seasonal flow regulation. The cities of Perm, Dobryanka, Chyormoz, Berezniki, Usolye, and Solikamsk Solikamsk (russian: Солика́мск, Permyak: Совкар, ''Sovkar'', also Соликамскӧй, ''Sovkamsköy'') is a town in Perm Krai, Russia. Modern Solikamsk is the third-largest town in the krai, with a population of History The ... are located on the shores of the Kama Rese ...
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Russia
Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eighth of Earth's inhabitable landmass. Russia extends across eleven time zones and shares land boundaries with fourteen countries, more than any other country but China. It is the world's ninth-most populous country and Europe's most populous country, with a population of 146 million people. The country's capital and largest city is Moscow, the largest city entirely within Europe. Saint Petersburg is Russia's cultural centre and second-largest city. Other major urban areas include Novosibirsk, Yekaterinburg, Nizhny Novgorod, and Kazan. The East Slavs emerged as a recognisable group in Europe between the 3rd and 8th centuries CE. Kievan Rus' arose as a state in the 9th century, and in 988, it adopted Orthodox Christianity from t ...
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Russian Language
Russian (russian: русский язык, russkij jazyk, link=no, ) is an East Slavic languages, East Slavic language mainly spoken in Russia. It is the First language, native language of the Russians, and belongs to the Indo-European languages, Indo-European language family. It is one of four living East Slavic languages, and is also a part of the larger Balto-Slavic languages. Besides Russia itself, Russian is an official language in Belarus, Kazakhstan, and Kyrgyzstan, and is used widely as a lingua franca throughout Ukraine, the Caucasus, Central Asia, and to some extent in the Baltic states. It was the De facto#National languages, ''de facto'' language of the former Soviet Union,1977 Soviet Constitution, Constitution and Fundamental Law of the Union of Soviet Socialist Republics, 1977: Section II, Chapter 6, Article 36 and continues to be used in public life with varying proficiency in all of the post-Soviet states. Russian has over 258 million total speakers worldwide. ...
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River
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, spr ...
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Kirov Oblast
Kirov Oblast (russian: Ки́ровская о́бласть, ''Kirovskaya oblast'') is a federal subject of Russia (an oblast) in Eastern Europe. Its administrative center is the city of Kirov. Population: 1,341,312 ( 2010 Census). Geography Natural resources The basis of the natural resources are forest (mostly conifers), phosphate rock, peat, furs, water and land resources. There are widespread deposits of peat and non-metallic minerals: limestone, marl, clay, sand and gravel, as well as the extremely rare mineral volkonskoite. In recent decades, in the east of the area revealed a minor recoverable oil reserves and deposits of bentonite clays. In the area is the largest in Europe Vyatsko-Kama deposit of phosphate rock. The area is rich in mineral springs and therapeutic mud. On the territory of Kumyonsky District is famous resort town of federal significance Nizhneivkino, which on treatment and rest come to residents of the Kirov region and many regions of Russia. Hydrog ...
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Volga
The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of , and a catchment area of «Река Волга»
, Russian State Water Registry
which is more than twice the size of . It is also Europe's largest river in terms of average discharge at delta – between and – and of . It is widely regarded as t ...
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Drainage Basin
A drainage basin is an area of land where 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, the '' drainage divide'', made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, "watershed" is used only in its original sense, that of a drainage divide. In a closed drainage basin, or endorheic basin, the water converges to a single point inside the basin, known as a sink, which may be a permanent lake, a dry lake, or a point where surface water is lost underground. Drainage basins are simi ...
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