mouth_of_the_watercourse tretya river
Eurasia is the combined continental landmass of Europe and Asia . The term is a portmanteau of its constituent continents . Located primarily in the Northern and Eastern Hemispheres , it is bordered by the ___MASK35___ to the west , the Pacific Ocean to the east , the Arctic Ocean to the north , and by Africa , the Mediterranean Sea , and the Indian Ocean to the south . The division between Europe and Asia as two different continents is a historical and cultural construct , with no clear physical separation between them ; thus , in some parts of the world , Eurasia is recognized as the largest of five or six continents . In geology , Eurasia is often considered as a single rigid megablock . However , the rigidity of Eurasia is debated based on the paleomagnet data . Chukotka Autonomous Okrug ( Chukchi : , " Chukotkaken avtonomnyken okrug ") or Chukotka is a federal subject of Russia ( an autonomous okrug ) located in the Russian Far East . The population was recorded at 50 , 526 in the 2010 Census . Saint Petersburg is Russia ' s second - largest city after Moscow , with five million inhabitants in 2012 , and an important Russian port on the Baltic ___MASK87___ . It is politically incorporated as a federal subject ( a federal city ). Situated on the Neva River , at the head of the Gulf of Finland on the Baltic ___MASK87___ , it was founded by Tsar Peter the Great on May . In 1914 , the name was changed from Saint Petersburg to Petrograd , in 1924 to Leningrad , and in 1991 back to Saint Petersburg . Between 1713  1728 and 1732  1918 , Saint Petersburg was the imperial capital of Russia . In 1918 , the central government bodies moved to Moscow . The Tumanskaya River is a stream in Far East Siberia . It flows through a region of wetlands and tundra into the ___MASK45___ at the Anadyr Bay . Novosibirsk is the third - most populous city in Russia after Moscow and St . Petersburg . It is the most populous city in Asian Russia , with a population of 1 , 473 , 754 as of the 2010 Census . It is the administrative center of Novosibirsk Oblast as well as of the Siberian Federal District . The city is located in the southwestern part of Siberia on the banks of the ___MASK4___ River adjacent to the ___MASK4___ River Valley , near the large water reservoir formed by the dam of the Novosibirsk Hydro Power Plant , and occupies an area of . The Russian Far East is the Russian part of the Far East , i . e . the extreme east parts of Russia , between ___MASK81___ in Eastern Siberia and the ___MASK33___ . The Far Eastern Federal District , which covers this area , borders with the Siberian Federal District to the west . The Far Eastern Federal District has land borders with the People ' s Republic of China and North Korea to the south west and maritime borders with Japan and the American state of Alaska . Although traditionally considered part of Siberia , the Russian Far East is categorized separately from Siberia in Russian regional schemes ( and previously during the Soviet era when it was called the Soviet Far East ). Nizhny Novgorod , colloquially shortened to Nizhny , is a city in the administrative center of Nizhny Novgorod Oblast and ___MASK6___ Federal District in Russia . From 1932 to 1990 , it was known as Gorky , after the writer Maxim Gorky , who was born there . The city is an important economic , transportation , scientific , educational and cultural center in Russia and the vast ___MASK6___ - Vyatka economic region , and is the ___MASK56___ center of river tourism in Russia . In the historical part of the city there are a large number of universities , theaters , museums and churches . Nizhny Novgorod is located about 400 km east of Moscow , where the Oka empties into the ___MASK6___ . Population : The ___MASK45___ is a marginal sea of the Pacific Ocean . It comprises a deep water basin , which then rises through a narrow slope into the shallower water above the continental shelves . Beringovsky District was an administrative district ( raion ) of Chukotka Autonomous Okrug , Russia , which existed in 1957  2011 . As a municipal division , it was , together with Anadyrsky Administrative District , incorporated as Anadyrsky Municipal District . It was located on the southeastern shores of the autonomous okrug and bordered with Anadyrsky District in the west and the ___MASK45___ in the east . Its administrative center was the urban locality ( an urban - type settlement ) of Beringovsky . Population : . The area of the district was . The Tretya River ( Russian :   , also spelt alternativelly as Tret ' ya or Tretaya ) is a stream in the Beringovsky District of Chukotka Autonomous Okrug , Russia . It drains part of the southern Anadyr Lowlands ( very flat with wetlands and tundra ) . It flows northeast and then northwest into the Anadyr Estuary ( its mouth is the southernmost notch on the image on that page ) . To the east of the Tretya is the Avtatkuul ' zakaznik protected area . To the south is the Tumanskaya River . Belugas are common in its waters . Europe is a continent that comprises the westernmost part of Eurasia . Europe is bordered by the ___MASK73___ to the north , the ___MASK35___ to the west , and the Mediterranean Sea to the south . To the east and southeast , Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains , the Ural River , the Caspian and Black Seas , and the waterways of the Turkish Straits . Yet the non - oceanic borders of Europe  a concept dating back to classical antiquity  are arbitrary . The primarily physiographic term " continent " as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent ' s current overland boundaries . Russia ( from the  Rus '), also officially known as the Russian Federation , is a country in Eurasia . At , Russia is the largest country in the world by surface area , covering more than one - eighth of the Earth ' s inhabited land area , and the ninth most populous , with over 140 million people at the end of March 2016 . The European western part of the country is much more populated and urbanised than the eastern , about 77 % of the population live in European Russia . Russia ' s capital Moscow is one of the largest cities in the world , other major urban centers include Saint Petersburg , Novosibirsk , Yekaterinburg , Nizhny Novgorod and Samara . Ukraine ( tr . ) is a sovereign state in Eastern Europe , bordered by Russia to the east and northeast , Belarus to the northwest , Poland and Slovakia to the west , Hungary , Romania , and Moldova to the southwest , and the Black ___MASK87___ and ___MASK82___ to the south and southeast , respectively . Ukraine is currently in territorial dispute with Russia over the Crimean Peninsula which Russia annexed in 2014 but which Ukraine and most of the international community recognise as Ukrainian . Including Crimea , Ukraine has an area of , making it the largest country entirely within Europe and the 46th largest country in the world . It has a population of about 44 . 5 million , making it the 32nd most populous country in the world . Zakaznik ( transliterated : " zakaznik , zakazniki " transliterated : " zakaznyk ", " zakaznyky "; Belarusian :  ,  , transliterated : zakaznik , zakazniki ) is a type of protected area in Russia and some other former Soviet republics such as Belarus and Ukraine that meets World Conservation Union ' s ( IUCN ) category III , or more frequently category VI criteria .