Yakutsk Region
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Yakutsk ( ) is the capital and largest city of Sakha, Russia, located about south 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 ...
. Fueled by the mining industry, Yakutsk has become one of Russia's most rapidly growing regional cities, with a population of 355,443 at the 2021 census. Yakutsk has an average annual temperature of , winter high temperatures consistently well below , and a record low of has been recorded.Погода в Якутске. Температура воздуха и осадки. Июль 2001 г.
(in Russian)
As a result, Yakutsk is the coldest ''major city'' in the world (although a number of smaller towns in that region are slightly colder). Yakutsk is also the largest city located in
continuous 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 ...
; the only other large city is
Norilsk Norilsk ( rus, Нори́льск, p=nɐˈrʲilʲsk) is a closed city in Krasnoyarsk Krai, Russia, located south of the western Taymyr Peninsula, around 90 km east of the Yenisei, Yenisey River and 1,500 km north of Krasnoyarsk. Norilsk is 300 ...
, also in
Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...
. Yakutsk is in the
Central Yakutian Lowland The Central Yakutian LowlandJohn Kimble (ed.), ''Cryosols: Permafrost-Affected Soils'' or the Central Yakutian Lowlands (; ), also known as the Central Yakut Plain or the Vilyuy Lowland, is a low alluvial plain in Siberia, Russia. Administrati ...
and is a major port on the
Lena River The Lena is a river in the Russian Far East and is the easternmost river of the three great rivers of Siberia which flow into the Arctic Ocean, the others being Ob (river), Ob and Yenisey. The Lena River is long and has a capacious drainage basi ...
. It is served by the
Yakutsk Airport Platon Oyunsky Yakutsk International Airport (, ; , ''Mezhdunarodnyj aeroport Yakutsk imeni Platona Ojunskogo'') is an airport in Yakutsk, Russia. It has one runway (an older runway serves as a parking area for disused aircraft) and has a capaci ...
as well as the smaller
Magan Airport Magan Airport (; , ''Mağan aeroporda'') serves the village of Magan, a few kilometers west of Yakutsk, in Russia. Until the early 1980s, Yakutsk/Magan was monitored as one of nine Arctic staging bases capable of handling the Tupolev Tu-22M ...
.


Etymology

The city was founded in 1632 by the
Cossacks The Cossacks are a predominantly East Slavic languages, East Slavic Eastern Christian people originating in the Pontic–Caspian steppe of eastern Ukraine and southern Russia. Cossacks played an important role in defending the southern borde ...
and was originally called either the Lensky fortress or the Yakutsk fortress. The first version of the toponym came from the
hydronym A hydronym (from , , "water" and , , "name") is a type of toponym that designates a proper name of a body of water. Hydronyms include the proper names of rivers and streams, lakes and ponds, swamps and marshes, seas and oceans. As a subset of top ...
"Lena", the second, from "Yakutia", a synonym for Sakha, eventually became the main one in use. In 1708 it received city status as Yakutsk.


History

The
Yakuts The Yakuts or Sakha (, ; , ) are a Turkic ethnic group native to North Siberia, primarily the Republic of Sakha in the Russian Federation. They also inhabit some districts of the Krasnoyarsk Krai. They speak Yakut, which belongs to the Si ...
, also known as the Sakha people, migrated to the area during the 13th and 14th centuries from other parts of Siberia. When they arrived they mixed with other indigenous Siberians. The Russian settlement of Yakutsk was founded in 1632 as an '' ostrog'' (fortress) by
Pyotr Beketov Pyotr Beketov (, c. 1600 – c. 1661) was a Cossack explorer of Siberia and founder of various fortified settlements in the region, which later developed into modern cities such as Yakutsk, Chita, and Nerchinsk. Beketov started his military ser ...
.


Climate

With an intensely continental
subarctic climate The subarctic climate (also called subpolar climate, or boreal climate) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of ...
(
Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...
''Dfc'', closely bordering on ''Dfd'',
Trewartha Glenn Thomas Trewartha (1896 – 1984) was an American geographer of Cornish American descent. He graduated from the University of Wisconsin–Madison, with a Ph.D. in 1924. He taught at the University of Wisconsin. He gave an address to th ...
''Ecbd''), Yakutsk has the coldest winter temperatures for any city its size or larger on Earth. Average monthly temperatures in Yakutsk range from in July to in December. Yakutsk is the largest city built on continuous
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 many houses there are built on concrete
piles Hemorrhoids (or haemorrhoids), also known as piles, are vascular structures in the anal canal. In their normal state, they are cushions that help with stool control. They become a disease when swollen or inflamed; the unqualified term ''he ...
. The lowest temperatures ever recorded on Earth outside
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...
and
Greenland Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenlan ...
have occurred in the basin of the
Yana River The Yana ( rus, Я́на, p=ˈjanə; ) is a river in Sakha in Russia, located between the Lena to the west and the Indigirka to the east. Course It is long, and its drainage basin covers . Including its longest source river, the Sartang, i ...
to the northeast of Yakutsk. Winters are extremely cold and long: Yakutsk has never recorded a temperature above freezing between November 10 and March 14. Summers are sunny, warm and occasionally hot (though short), with daily maximum temperatures exceeding , making the seasonal temperature differences for the region the greatest in the world at . The lowest temperature recorded in Yakutsk was on February 5, 1891, and the highest temperatures on , 2011, and on , 1942. The hottest month in records going back to 1834 has been July 1894, with a mean of , and the coldest, January 1900, which averaged . Yakutsk is the largest city in the world with an average winter temperature of below . Yakutsk is an inland location, being almost from the Pacific Ocean, which coupled with the high latitude, means exposure to severe winters and lack of temperature moderation. July temperatures soar to an above-normal average for this latitude, with the average being several degrees hotter than more southerly Far East cities such as
Vladivostok Vladivostok ( ; , ) is the largest city and the administrative center of Primorsky Krai and the capital of the Far Eastern Federal District of Russia. It is located around the Zolotoy Rog, Golden Horn Bay on the Sea of Japan, covering an area o ...
or
Yuzhno-Sakhalinsk Yuzhno-Sakhalinsk (, , ) is a city and the administrative center of Sakhalin Oblast, Russia. It is located on Sakhalin Island in the Russian Far East, north of Japan. Gas and oil extraction as well as processing are amongst the main industries on ...
. The July daytime temperatures are even hotter than some maritime subtropical areas. The warm summers ensure that Yakutsk, despite its freezing winters, is far south of the
tree line The tree line is the edge of a habitat at which trees are capable of growing and beyond which they are not. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually low ...
. In winter, Yakutsk instead is between and colder than the mildest cities on similar latitudes in
Scandinavia Scandinavia is a subregion#Europe, subregion of northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. ''Scandinavia'' most commonly refers to Denmark, Norway, and Sweden. It can sometimes also ...
. The climate is quite dry, with most of the annual precipitation occurring in the summer months, due to the intense
Siberian High The Siberian High (also Siberian Anticyclone; (''Aziatsky antitsiklon''); zh, 西伯利亞高壓; Pinyin ''Xībólìyǎ gāoyā''; Kazakh Азия антициклоны (''Aziya antitsiklonı'')) is a massive collection of cold dry air that a ...
forming around the very cold continental air during the winter. However, summer precipitation is not heavy since the moist southeasterly winds from the Pacific Ocean lose their moisture over the coastal mountains well before reaching the Lena Valley.


Economy

The primary economic activity stems from mining activities in the region, particularly coal, gold, and diamonds, with multiple mining companies having set up their headquarters in the city. Precious stones and metals, particularly diamonds, as well as coal, are Yakutsk's major exports. The export volume was $5.55 billion in 2021, making it the 16th largest out of eighty-five of Russia's federal subjects, although it contracted sharply (under $1 billion) in 2022.
Yakutsk Airport Platon Oyunsky Yakutsk International Airport (, ; , ''Mezhdunarodnyj aeroport Yakutsk imeni Platona Ojunskogo'') is an airport in Yakutsk, Russia. It has one runway (an older runway serves as a parking area for disused aircraft) and has a capaci ...
is the main airport, and
Yakutia Airlines Air Company Yakutia ( – ''Aviakompanija «Yakutiya»'') is an airline based in Yakutsk, Sakha Republic, Russia. It operates domestic passenger services in Russia and within the Commonwealth of Independent States as well as destinations in Euro ...
has its head office in the city, operating flights between Yakutsk and other main Russian cities. Tourism as an economic sector plays a small but growing role, thanks to the city's unique cultural heritage and natural attractions such as the Lena Pillars Nature Park, a UNESCO World Heritage site, and the Permafrost Kingdom, which is a tourist complex dedicated to showcasing the unique features of the region's permafrost. With the Lena River navigable in the summer, there are boat cruises offered, including upriver to the Lena Pillars, and downriver tours which visit spectacular scenery in the lower reaches and the
Lena Delta The Lena is a river in the Russian Far East and is the easternmost river of the three great rivers of Siberia which flow into the Arctic Ocean, the others being Ob and Yenisey. The Lena River is long and has a capacious drainage basin of ; thus ...
. In recent years, housing construction, with an emphasis on providing affordable housing, has been a focus, which was accompanied by the growth in the construction materials manufacturing. A sizeable portion of the republic's agricultural sector is in Yakutsk, which accounts for 89% of the republic's meat and 34% of the republic's dairy production.


Culture

There are several theaters in Yakutsk: the State Russian Drama Theater, named after A. S. Pushkin; the Sakha Theater, named after P. A. Oiyunsky; the Suorun Omoloon Young Spectator's Theater; and the State Academic Opera and Ballet Theater, named after D. K. Sivtsev. Museums include the National Fine Arts Museum of Sakha; the Museum of Local Lore and History, named after E. Yaroslavsky; and the only museums in the world dedicated to the khomus and
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 ...
. In September 2020, the Gagarin Center for Culture and Contemporary Art was opened in the Gagarin District of Yakutsk. In 2021, the construction of the "State Philharmonic of Yakutia. The Arctic Center of Epos and Arts" began. The annual Ysyakh summer festival takes place the last weekend in June. The traditional Yakut summer solstice festivities include a celebration of the revival and renewal of the nature, fertility and beginning of a new year. It is accompanied by national Yakut rituals and ceremonies, folk dancing, horse racing, Yakut ethnic music and singing, national cuisine, and competitions in traditional Yakut sports. There is a local punk scene in Yakutsk, with many bands. The city has an increasingly vibrant film industry that has been gaining international recognition over recent years for its unique style and the way its filmmakers portray the region and its people. The regional film industry has come to be nicknamed "Sakhawood". People in Yakutsk wear very fluffy and fuzzy clothing, and in extremely cold weather they cope by sheltering indoors in warm housing, which is believed to lower Yakutsk's increase in winter mortality rates compared to the seasonal rise in mortality seen in milder regions of the world.


Demographics

According to
Rosstat The Federal State Statistics Service (, abbreviated as Rosstat) is the List of national and international statistical services, governmental statistics agency in Russia. Since 2017, it is again part of the Ministry of Economic Development (Rus ...
estimates for 2025, the population of Yakutsk is 372,801 in the city proper and 390,236 in the city's urban area, which is more than one third of the total population of Sakha. In the 2021 Census, the following ethnic groups were listed: *
Yakuts The Yakuts or Sakha (, ; , ) are a Turkic ethnic group native to North Siberia, primarily the Republic of Sakha in the Russian Federation. They also inhabit some districts of the Krasnoyarsk Krai. They speak Yakut, which belongs to the Si ...
: 59.2% *
Russians Russians ( ) are an East Slavs, East Slavic ethnic group native to Eastern Europe. Their mother tongue is Russian language, Russian, the most spoken Slavic languages, Slavic language. The majority of Russians adhere to Eastern Orthodox Church ...
: 26.4% * Kyrgyz: 3.4% *
Evenks The Evenki, also known as the Evenks and formerly as the Tungus, are a Tungusic peoples, Tungusic people of North Asia. In Russia, the Evenki are recognised as one of the Indigenous peoples of the Russian North, indigenous peoples of the Russi ...
: 1.9% *
Tajiks Tajiks (; ; also spelled ''Tadzhiks'' or ''Tadjiks'') is the name of various Persian-speaking Eastern Iranian groups of people native to Central Asia, living primarily in Afghanistan, Tajikistan and Uzbekistan. Even though the term ''Tajik'' ...
: 1.7% *
Chinese Chinese may refer to: * Something related to China * Chinese people, people identified with China, through nationality, citizenship, and/or ethnicity **Han Chinese, East Asian ethnic group native to China. **'' Zhonghua minzu'', the supra-ethnic ...
: 1.4% *
Armenians Armenians (, ) are an ethnic group indigenous to the Armenian highlands of West Asia.Robert Hewsen, Hewsen, Robert H. "The Geography of Armenia" in ''The Armenian People From Ancient to Modern Times Volume I: The Dynastic Periods: From Antiq ...
: 1.1% * Other ethnicities: 4.9%


Religion

Orthodox Christianity Orthodox, Orthodoxy, or Orthodoxism may refer to: Religion * Orthodoxy, adherence to accepted norms, more specifically adherence to creeds, especially within Christianity and Judaism, but also less commonly in non-Abrahamic religions like Neo-pag ...
is the most widely professed faith in Yakutsk, with significant populations of the adherents of
Shamanism Shamanism is a spiritual practice that involves a practitioner (shaman) interacting with the spirit world through altered states of consciousness, such as trance. The goal of this is usually to direct spirits or spiritual energies into ...
and
Rodnovery The Slavic Native Faith, commonly known as Rodnovery and sometimes as Slavic Neopaganism, is a modern Paganism, modern Pagan religion. Classified as a new religious movement, its practitioners hearken back to the Slavic paganism, historica ...
. A sizeable share of the city's residents is
non-religious Irreligion is the absence or rejection of religious beliefs or practices. It encompasses a wide range of viewpoints drawn from various philosophical and intellectual perspectives, including atheism, agnosticism, religious skepticism, ration ...
. The city's two main ethnic groups, the Turkic speaking
Yakuts The Yakuts or Sakha (, ; , ) are a Turkic ethnic group native to North Siberia, primarily the Republic of Sakha in the Russian Federation. They also inhabit some districts of the Krasnoyarsk Krai. They speak Yakut, which belongs to the Si ...
and the
Slavic Slavic, Slav or Slavonic may refer to: Peoples * Slavic peoples, an ethno-linguistic group living in Europe and Asia ** East Slavic peoples, eastern group of Slavic peoples ** South Slavic peoples, southern group of Slavic peoples ** West Slav ...
speaking
Russians Russians ( ) are an East Slavs, East Slavic ethnic group native to Eastern Europe. Their mother tongue is Russian language, Russian, the most spoken Slavic languages, Slavic language. The majority of Russians adhere to Eastern Orthodox Church ...
, are primarily Christian. The world largest temple of the
Aiyy Faith __NOTOC__ The Aiyy Faith () is a neo-Tengrism, Tengrist Yakuts, Yakut religious organization that has been registered since 2015 in Yakutsk, Yakutia, Sakha Republic (Yakutia), Russia. It was established by the philologist and has a precursor in t ...
is also located in Yakutsk.


Administrative and municipal status

Yakutsk is the capital of the Sakha Republic. As an inhabited locality, Yakutsk is classified as a city under republic jurisdiction.Registry of the Administrative-Territorial Divisions of the Sakha Republic Within the framework of administrative divisions, it is, together with the
settlement Settlement may refer to: *Human settlement, a community where people live *Settlement (structural), downward movement of a structure's foundation *Settlement (finance), where securities are delivered against payment of money *Settlement (litigatio ...
of Zhatay and eleven rural localities, incorporated as the city of republic significance of Yakutsk—an administrative unit with a status equal to that of the
districts A district is a type of administrative division that in some countries is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or counties, several municipalities, subdivisions ...
. As a municipal division, Yakutsk and the eleven rural localities are incorporated as Yakutsk Urban Okrug.Law #174-Z #355-III The settlement of Zhatay is not a part of Yakutsk Urban Okrug and is independently incorporated as Zhatay Urban Okrug. Divisional source:

*Administrative centers are shown in bold


Transportation

Yakutsk is a destination of the Lena Highway. The city's connection to that highway is only usable by ferry in the summer, or in the dead of winter, by driving directly over the frozen
Lena River The Lena is a river in the Russian Far East and is the easternmost river of the three great rivers of Siberia which flow into the Arctic Ocean, the others being Ob (river), Ob and Yenisey. The Lena River is long and has a capacious drainage basi ...
, since Yakutsk lies entirely on its western bank, and there is no bridge anywhere in the Sakha Republic that crosses the Lena. In the dead of winter, the frozen Lena River makes for a passable highway for ice truckers using its channel to deliver provisions to far-flung outposts. The river is impassable for long periods of the year when it contains loose ice, when the ice cover is not thick enough to support traffic, or when the water level is too high and the river is turbulent with spring flooding. The highway ends on the eastern bank of Lena in
Nizhny Bestyakh Nizhny Bestyakh (; , ''Allaraa Besteex'') is an urban locality (an urban-type settlement) in Megino-Kangalassky District of the Sakha Republic, Russia, located on the east bank of the Lena River, opposite the republic's capital city of Yakutsk, ...
(Нижний Бестях), an
urban-type settlement Urban-type settlement, abbreviated: ; , abbreviated: ; ; ; ; . is an official designation for lesser urbanized settlements, used in several Central and Eastern Europe, Central and Eastern European countries. The term was primarily used in the So ...
of some four thousand people. Nizhny Bestyakh is connected with
Magadan Magadan ( rus, Магадан, p=məɡɐˈdan) is a Port of Magadan, port types of inhabited localities in Russia, town and the administrative centre of Magadan Oblast, Russia. The city is located on the isthmus of the Staritsky Peninsula by the ...
by the
Kolyma Highway The R504 Kolyma Highway (, ''Federal'naya Avtomobil'naya Doroga «Kolyma»,'' "Federal Automobile Highway 'Kolyma'"), part of the M56 route, is a road through the Russian Far East. It connects Magadan with the town of Nizhny Bestyakh, located ...
. Construction of a highway bridge over the
River Lena The Lena is a river in the Russian Far East and is the easternmost river of the three great rivers of Siberia which flow into the Arctic Ocean, the others being Ob and Yenisey. The Lena River is long and has a capacious drainage basin of ; thus ...
to Yakutsk was approved by president
Vladimir Putin Vladimir Vladimirovich Putin (born 7 October 1952) is a Russian politician and former intelligence officer who has served as President of Russia since 2012, having previously served from 2000 to 2008. Putin also served as Prime Minister of Ru ...
on November 9, 2019. Based upon a design submitted in 2008, it would be over long and constructed upriver at Tabaga, where the river narrows and does not create a wide flooded area in spring. The cost of the bridge and its of approaches was estimated at 63.7 billion Rubles (83 billion rubles including VAT ДС, of which a grant of 54.2 billion Rubles was to be provided, with the remainder to be sourced from investors. The bridge was to be toll-free for cars, with a toll for trucks. Work commenced in 2024, with an estimated cost of 130 billion Rubles and a proposed completion date of 2028. The bridge had originally been planned to be a dual-use railroad and highway bridge so the Amur Yakutsk Mainline, the North–South railroad being extended from the south, could connect the city with the East–West
Baikal Amur Mainline Lake Baikal is a rift lake and the deepest lake in the world. It is situated in southern Siberia, Russia between the Federal subjects of Russia, federal subjects of Irkutsk Oblast, Irkutsk Oblasts of Russia, Oblast to the northwest and the Repu ...
. The railroad reached the settlement of
Nizhny Bestyakh Nizhny Bestyakh (; , ''Allaraa Besteex'') is an urban locality (an urban-type settlement) in Megino-Kangalassky District of the Sakha Republic, Russia, located on the east bank of the Lena River, opposite the republic's capital city of Yakutsk, ...
, on the opposite bank of the Lena from Yakutsk, in November 2011. The 2019 completion of a new rail line to the eastern bank of the Lena permitted the start of passenger rail services between Yakutsk and the rest of Russia. Yakutsk is also connected to other parts of Russia by
Yakutsk Airport Platon Oyunsky Yakutsk International Airport (, ; , ''Mezhdunarodnyj aeroport Yakutsk imeni Platona Ojunskogo'') is an airport in Yakutsk, Russia. It has one runway (an older runway serves as a parking area for disused aircraft) and has a capaci ...
.


Education and research

M.K.Ammosov North-Eastern Federal University is in the city. There is also a branch of the
Russian Academy of Science The Russian Academy of Sciences (RAS; ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such ...
s, which contains, among other things, the ''Institute of Cosmophysical Research'', which runs the Yakutsk Extensive Air Shower installation (one of the largest cosmic-ray detector arrays in the world), and the Melnikov Permafrost Institute, founded in 1960 with the aim of solving the serious and costly problems associated with construction of buildings on frozen soil. In 2020, with global heating thawing the ground, the institute is measuring the rate at which the permafrost is thawing, which affects the city as well as the climate. At the primary and secondary levels, the city has a number of UNESCO Associated Schools, including the Sakha-Turkish College, Sakha-French School,
Sakha-Korean School The Sakha-Korean School is a school in Yakutsk, Sakha Republic, Russia. It was founded in 1994 and in 2008 it enrolled roughly 280 students at the primary and middle-school levels (up from roughly 200 in 2002). History The origins of the schoo ...
, and School#16.


Twin towns – sister cities

Yakutsk is twinned with: * Fairbanks, United States *
Harbin Harbin, ; zh, , s=哈尔滨, t=哈爾濱, p=Hā'ěrbīn; IPA: . is the capital of Heilongjiang, China. It is the largest city of Heilongjiang, as well as being the city with the second-largest urban area, urban population (after Shenyang, Lia ...
, China *
Heihe Heihe (; ; Russian language, Russian: Хэйхэ) is a prefecture-level city of northern Heilongjiang province, China, located on the Sino-Russian border, Russian border, on the south bank of the Amur River, Amur (Heilong) River, across the r ...
, China * Murayama, Japan * Olympia, Greece *
Velingrad Velingrad ( ) is a town in Pazardzhik Province, Southern Bulgaria, located at the western end of Chepino Valley, part of the Rhodope Mountains. It is the administrative center of the homonymous Velingrad Municipality and one of the most po ...
, Bulgaria *
Malang Malang (; , ), historically known as Tumapel, is an inland List of regencies and cities of Indonesia, city in the Indonesian Provinces of Indonesia, province of East Java. It has a history dating back to the age of the Singhasari, Singhasari K ...
, Indonesia


See also

* Yakutsk TV Tower


Notes


References


Bibliography

* *


External links


Official website of Yakutsk

Sakha Life Information Agency


a
Natural Heritage Protection Fund
{{Use mdy dates, date=January 2025 Russian Far East Populated places established in 1632 1632 establishments in Russia Populated places on the Lena River Central Yakutian Lowland Yakutsk Oblast