Trans-Siberian Railway in the context of "Amur Oblast"

Omsk (/ˈɒmsk/; Russian: Омск, IPA: [omsk]) is the administrative center and largest city of Omsk Oblast, Russia. It is situated in southwestern Siberia and has a population of over one million. Omsk is the third largest city in Siberia after Novosibirsk and Krasnoyarsk, and the twelfth-largest city in Russia. It is an important transport node, serving as a train station for the Trans-Siberian Railway and as a staging post for the Irtysh River.

During the Imperial era, Omsk was the seat of the Governor General of Western Siberia and, later, of the Governor General of the Steppes. For a brief period during the Russian Civil War in 1918–1920, it served as the capital of the anti-Bolshevik Russian State and held the imperial gold reserves.

Novosibirsk is the largest city and administrative centre of Novosibirsk Oblast and the Siberian Federal District in Russia. As of the 2021 census, it had a population of 1,633,595, making it the most populous city in Siberia and the third-most populous city in Russia after Moscow and Saint Petersburg. Additionally, it is the largest city in the Asian part of Russia and the most populous city in the country that does not have the status of a federal subject. Novosibirsk is located in southwestern Siberia, on the banks of the Ob River.

Novosibirsk was founded in 1893 on the Ob River crossing point of the future Trans-Siberian Railway, where the Novosibirsk Rail Bridge was constructed. Originally named Novonikolayevsk in honor of Emperor Nicholas II, the city rapidly grew into a major transport, commercial, and industrial hub. Novosibirsk was ravaged by the Russian Civil War but recovered during the early Soviet period and gained its present name, Novosibirsk, in 1926. Under the leadership of Joseph Stalin, Novosibirsk became one of the largest industrial centers of Siberia. Following the outbreak of World War II, the city hosted many factories relocated from the Russian core.

Krasnoyarsk is the largest city and administrative center of Krasnoyarsk Krai, Russia. It is situated along the Yenisey River, and is the second-largest city in Siberia after Novosibirsk, with a population of over 1.1 million. Krasnoyarsk is an important junction of the renowned Trans-Siberian Railway, and is one of the largest producers of aluminum in the country. The city is known for its natural landscape; author Anton Chekhov judged Krasnoyarsk to be the most beautiful city in Siberia. The Stolby Nature Sanctuary is located 10 km south of the city. Krasnoyarsk is a major educational centre in Siberia, and hosts the Siberian Federal University. In 2019, Krasnoyarsk was the host city of the 2019 Winter Universiade, the third hosted in Russia.

The Eurasian Land Bridge (Russian: Евразийский сухопутный мост, romanized: Yevraziyskiy sukhoputniy most), sometimes called the New Silk Road (Новый шёлковый путь, Noviy shyolkoviy put'), is the rail transport route for moving freight and passengers overland between Pacific seaports in the Russian Far East and China and seaports in Europe. The route, a transcontinental railroad and rail land bridge, comprises the Trans-Siberian Railway, which runs through Russia and is sometimes called the Northern East-West Corridor, and the New Eurasian Land Bridge or Second Eurasian Continental Bridge, running through China and Kazakhstan. As of November 2007, about one percent of the $600 billion in goods shipped from Asia to Europe each year were delivered by inland transport routes.

Completed in 1916, the Trans-Siberian connects Moscow with Russian Pacific seaports such as Vladivostok. From the 1960s until the early 1990s the railway served as the primary land bridge between Asia and Europe, until several factors caused the use of the railway for transcontinental freight to dwindle. One factor is use of a wider rail gauge by the railways of the former Russian Empire and Soviet Union than most of the rest of Europe and China.

The Ob (/ˈɒb/; Russian: Обь) is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at 5,410 kilometres (3,360 mi). The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains. It is the westernmost of the three great Siberian rivers that flow into the Arctic Ocean (the other two being the Yenisei and the Lena). Its flow is north-westward, then northward.

The main city on its banks is Novosibirsk, the largest city in Siberia, and the third-largest city in Russia. It is where the Trans-Siberian Railway crosses the river.

Chelyabinsk is the administrative center and largest city of Chelyabinsk Oblast, Russia. It is the seventh-largest city in Russia, with a population of over 1.1 million people, and the second-largest city in the Ural Federal District, after Yekaterinburg. Chelyabinsk is located to the east behind the south part of the Ural Mountains and runs along the Miass River.

The area of Chelyabinsk contained the ancient settlement of Arkaim, which belonged to the Sintashta culture. In 1736, a fortress by the name of Chelyaba was founded on the site of a Bashkir village. Chelyabinsk was granted town status by 1787. Chelyabinsk began to grow rapidly by the early 20th century as a result of the construction of railway links from the Russian core to Siberia, including the Trans-Siberian Railway. Its population reached 70,000 by 1917. Under the Soviet Union, Chelyabinsk became a major industrial centre during the 1930s. The Chelyabinsk Tractor Plant was built in 1933. During World War II, the city was a major contributor to the manufacture of tanks and ammunition.

A transcontinental railroad or transcontinental railway is contiguous railroad trackage that crosses a continental land mass and has terminals at different oceans or continental borders. Such networks may be via the tracks of a single railroad, or via several railroads owned or controlled by multiple railway companies along a continuous route. Although Europe is crisscrossed by railways, the railroads within Europe are usually not considered transcontinental, with the possible exception of the historic Orient Express.Transcontinental railroads helped open up interior regions of continents not previously colonized to exploration and settlement that would not otherwise have been feasible. In many cases, they also formed the backbones of cross-country passenger and freight transportation networks. Many of them continue to have an important role in freight transportation, and some such as the Trans-Siberian Railway even have passenger trains going from one end to the other.

The early history of Siberia was greatly influenced by the sophisticated nomadic civilizations of the Scythians (Pazyryk) on the west of the Ural Mountains and Xiongnu (Noin-Ula) on the east of the Urals, both flourishing before the common era. The steppes of Siberia were occupied by a succession of nomadic peoples, including the Khitan people, various Turkic peoples, and the Mongol Empire. In the Late Middle Ages, Tibetan Buddhism spread into the areas south of Lake Baikal.

During the Russian Empire, Siberia was chiefly developed as an agricultural province. The government also used it as a place of exile, sending Avvakum, Dostoevsky, and the Decemberists, among others, to work camps in the region. During the 19th century, the Trans-Siberian Railway was constructed, supporting industrialization. This was also aided by discovery and exploitation of vast reserves of Siberian mineral resources.