|This article needs additional citations for verification. (July 2007)|
Bii-Hem and Ka-Hem near Kyzyl
|Regions||Tyva, Krasnoyarsk Krai, Khakassia, Irkutsk Oblast, Buryatia, Zabaykalsky Krai|
|- right||Angara, Lower Tunguska, Stony Tunguska River|
|Cities||Kyzyl, Shagonar, Sayanogorsk, Abakan, Divnogorsk, Krasnoyarsk, Yeniseysk, Lesosibirsk, Igarka, Dudinka|
|- location||ridge Dod-Taygasyn-Noor, Mongolia|
|- elevation||3,351 m (10,994 ft)|
|- length||748 km (465 mi)|
|Length||5,539 km (3,442 mi)|
|Basin||2,580,000 km2 (996,144 sq mi)|
|- average||19,600 m3/s (692,167 cu ft/s)|
|- max||112,000 m3/s (3,955,243 cu ft/s)|
|- min||3,120 m3/s (110,182 cu ft/s)|
The Yenisei basin, including Lake Baikal
The Yenisei (Russian: Енисе́й, Yenisey, Mongolian: Gorlog), also written as Yenisey, is the largest river system flowing to the Arctic Ocean. It is the central of the three great Siberian rivers that flow into the Arctic Ocean (the other two being the Ob and the Lena). Rising in Mongolia, it follows a northerly course to the Yenisei Gulf in the Kara Sea, draining a large part of central Siberia, the longest stream following the Yenisei-Angara-Selenga-Ider river system.
The maximum depth of the Yenisei is 24 metres (80 ft) and the average depth is 14 metres (45 ft). The depth of river outflow is 32 metres (106 ft) and inflow is 31 metres (101 ft).
The 320-kilometre (200 mi), partly navigable Upper Angara River feeds into the northern end of Lake Baikal from the Buryat Republic but the largest inflow is from the Selenga which forms a delta on the south-eastern side.
Flora and fauna
The Yenisei River basin (excluding Lake Baikal and lakes of the Khantayka River headwaters) is home to 55 native fish species, including two endemics: Gobio sibiricus (a gobionine cyprinid) and Thymallus nigrescens (a grayling). Most fish found in the river basin are relatively widespread Euro-Siberian or Siberian species, such as northern pike (Esox lucius), common roach (Rutilus rutilus), common dace (Leuciscus leuciscus), Siberian sculpin (Cottus poecilopus), European perch (Perca fluviatilis) and Prussian carp (Carassius gibelio). The basin is also home to many salmonids (trout, whitefish, charr, graylings, taimen and relatives) and the Siberian sturgeon (Acipenser baerii).
The Yenisei River valley is habitat for numerous flora and fauna, with Siberian pine and Siberian larch being notable tree species. In prehistoric times Scots pine, Pinus sylvestris, was abundant in the Yenisei River valley circa 6000 BC. There are also numerous bird species present in the watershed, including, for example, the hooded crow, Corvus cornix.
Taimyr reindeer herd
The first team to navigate the Yenisey's entire length, including its violent upper tributary in Mongolia, was an Australian-Canadian effort completed in September 2001. Ben Kozel, Tim Cope, Colin Angus and Remy Quinter were on this team. Both Kozel and Angus wrote books detailing this expedition, and a documentary was produced for National Geographic Television.
Ancient nomadic tribes such as the Ket people and the Yugh people lived along its banks. The Ket, numbering about 1000, are the only survivors today of those who originally lived throughout central southern Siberia near the river banks. Their extinct relatives included the Kotts, Assans, Arins, Baikots, and Pumpokols who lived further upriver to the south. The modern Ket lived in the eastern middle areas of the river before being assimilated politically into Russia during the 17th through 19th centuries.
During World War II, Nazi Germany and the Japanese Empire agreed to divide Asia along a line that followed the Yenisei River to the border of China, and then along the border of China and the Soviet Union.
Studies have shown that the Yenisey suffers from contamination caused by radioactive discharges from a factory that produced bomb-grade plutonium in the secret city of Krasnoyarsk-26, now known as Zheleznogorsk.
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- Alan Taylor (23 August 2013). "A Year on the Yenisei River". The Atlantic. Retrieved 8 June 2014.
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- Stein, Ruediger et al. 2003. Siberian river run-off in the Kara Sea, Proceedings in Marine Sciences, Elsevier, Amsterdam, 488 pages
- C. Michael Hogan. 2009. Hooded Crow: Corvus cornix, GlobalTwitcher.com, ed, N. Stromberg
- Russell, D.E.; Gunn, A. (20 November 2013). "Migratory Tundra Rangifer". NOAA Arctic Research Program.
- Kolpashikov, L.; Makhailov, V.; Russell, D. (2014). "The role of harvest, predators and socio-political environment in the dynamics of the Taimyr wild reindeer herd with some lessons for North America". Ecology and Society.
- Baskin, Leonid M. (1986), "Differences in the ecology and behaviour of reindeer populations in the USSR", Rangifer, Special Issue (1): 333–340, retrieved 7 January 2015
- Five Months in a Leaky Boat: A River Journey Through Siberia, Kozel, 2003, Pan Macmillan
- Permanent International Association of Navigation Congresses. (1989). Ship lifts: report of a Study Commission within the framework of Permanent ... PIANC. ISBN 978-2-87223-006-8. Retrieved 2011-12-14.
- Vajda, Edward G. "The Ket and Other Yeniseian Peoples". Retrieved 2006-10-27.
- Fisher, Raymond Henry (1943). The Russian Fur Trade, 1550-1700. University of California Press.
- Weinberg, Gerhard L. Visions of Victory: The Hopes of Eight World War II Leaders Cambridge, England, United Kingdom:2005--Cambridge University Press 
- David Hoffman (17 August 1998). "Wastes of War: Radioactivity Threatens a Mighty River". The Washington Post. Retrieved 13 February 2015.
|Wikimedia Commons has media related to Yenisei River.|
|Wikisource has the text of the 1911 Encyclopædia Britannica article Yenisei.|
- Photos of river around Krasnoyarsk area at Boston.com
- William Barr, 'German paddle-steamers on the Yenisey 1878-84', The Journal of the Hakluyt Society, August 2014.
- Geographic data related to Yenisei River at OpenStreetMap