Imeni Poliny Osipenko District ( Russian : райо́н и́мени Поли́ны Осипе́нко ) is an administrative and municipal district ( raion ), one of the seventeen in Khabarovsk Krai , Russia . It is located in the center of the krai . The area of the district is 34,560 square kilometers (13,340 sq mi). Its administrative center is the rural locality (a selo ) of imeni Poliny Osipenko . Population: 5,198 ( 2010 Census ) ; 6,568 ( 2002 Census ) ; 7,651 ( 1989 Soviet census ) . The population of the administrative center accounts for 43.3% of the district's total population.
6-621: The district is mountainous. In the western part rise the Yam-Alin , Dusse-Alin , Etkil-Yankansky, Mevadzha and Koltoursky ranges; in the eastern part, parallel to the Amgun River, rise the Kivun, Omal, Omeldin and Chayatyn ranges. The Nimelen-Chukchagir Lowland is located in the central part of the district. The main rivers of the district are the Amgun and its tributaries Nimelen , Nilan and Semi, as well as
12-623: Is a mountain range in Amur Oblast and Khabarovsk Krai , Russian Far East . The range is part of the Ezop /Yam-Alin volcanic zone. The range is located in a remote area and was unexplored until mid 19th century. Between 1849 and 1853, a large Russian military expedition led by Nikolai Khristoforovich Akhte operated in the Russian Far East. The German surveyor of the Russian service Ludwig Schwarz
18-636: The Bureya Range . Its mountains display alpine relief and stretch for about 180 kilometres (110 mi). The highest point is Gorod Makit with a height of 2,298 metres (7,539 ft). To the southwest of the range rises the Ezop Range . In the north it connects with the southern end of the Taikan Range and to the northwest the Selemdzha Range stretches westwards. The range forms the watershed between
24-571: The Oldzhikan , Uda and Somnia (Сомня). The Amgun is navigable from the mouth to imeni Poliny Osipenko village. There are about four thousand lakes in the district. The largest are Chukchagir (366 km (141 sq mi)) and Dzhevdokha (19 km (7.3 sq mi)). 52°25′14″N 136°28′55″E / 52.42056°N 136.48194°E / 52.42056; 136.48194 Yam-Alin The Yam-Alin ( Russian : Ям-Алинь )
30-753: The rivers of the Selemdzha and Amgun basins. Some of the right tributaries of the Selemzha, such as the Takh-Urak , Kumusun and Selitkan , have their sources in the western slopes of the range. On the eastern there are the sources of a few left tributaries of the Amgun, such as the Kerby and Nimelen , as well as the Assyni (Ассыни), a tributary of the Tugur and the Munikan , a tributary of
36-515: Was assigned to it as an astronomer. Together with topographers Stepan Vasilievich Krutiv and Alexei Argunov , as well as geologist Nikolay Gavrilovich Meglitsky , the Yam-Alin range area was studied and topographically surveyed in detail. Based on their measurements, the first reliable map of Yam-Alin was drawn in 1851. The Yam-Alin and the Dusse-Alin to the south of it are northern prolongations of
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