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Lena River

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The Lena River is a massive waterway located in the Russian Far East. It is the easternmost of the three great Siberian rivers that flow into the Arctic Ocean. The other two major rivers in this group are the Ob and the Yenisey. The Lena is a very significant river for several reasons. It is the eleventh-longest river in the entire world. It also holds the title of being the longest river located entirely within the borders of Russia.

Parokhod na Lene
Parokhod na Lene

The river begins its journey at a high elevation in the Baikal Mountains. This mountain range sits west of Lake Baikal and south of the Central Siberian Plateau. From its source, the Lena flows in a north-east direction. It travels across the Lena-Angara Plateau as it moves toward the north. The entire drainage basin of the river sits on permafrost. Permafrost is ground that remains frozen for long periods. This frozen ground is continuous in over 75 percent of the Lena's catchment area.

As the Lena moves, many other rivers join its flow. These joining rivers are known as tributaries. The first major tributaries the river meets are the Kirenga, the Vitim, and the Olyokma. After the river passes the city of Yakutsk, it enters the Central Yakutian Lowland. Here, it is joined by two more large tributaries: the Aldan River to the east and the Vilyuy River to the west. The Vilyuy is part of the T-shaped Chona-Vilyuy system. This system drains a large area to the west of the Lena.

The path of the river changes as it nears the end of its journey. After meeting the Vilyuy, the Lena bends both westwards and northwards. It flows between two distinct mountain features. To the east, it passes the Kharaulakh Range, which is part of the Verkhoyansk Range. To the west, it flows beside the Chekanovsky Ridge. Eventually, the river travels almost due north. It widens into a massive area called the Lena Delta before merging into the Laptev Sea. The Laptev Sea is a marginal region of the Arctic Ocean located southwest of the New Siberian Islands.

The Lena Delta is a vast and complex landscape. It covers an area of 30,000 square kilometres. This delta is divided into many flat islands by seven main branches. The most eastern branch is called the Bykovsky channel. Some of the many islands in the delta include Otto Ary and Ullakhan Ary. For about seven months of the year, the delta is a frozen tundra. However, in May, the area transforms into a lush wetland. Part of this unique environment is protected as the Lena Delta Wildlife Reserve.

History shows that the Lena has been a place of discovery and struggle. Many believe its name comes from the Even-Evenk word Elyu-Ene, meaning "the Large River." Russian fur hunters explored the river between 1620 and 1623. They eventually founded the fortress of Yakutsk in 1632. In 1881, survivors of the Jeannette expedition reached the delta. Some were rescued by native Tungus huntsmen. The river also saw the "Lena massacre" in 1912. This was a violent event involving striking gold miners near Bodaybo. This incident helped increase revolutionary feelings in Russia.

The river provides many resources and supports various life forms. The mean annual discharge of the river is 489 cubic kilometres per year. The river is navigable for a length of 3,540 kilometres. Navigation depends on the ice, which is minimal or absent for part of the year. In the estuary, boats can travel for about 70 days. In other areas, the navigation period lasts about 125 days. The river is also home to fish like the Siberian taimen and Siberian sturgeon. People have even found gold in the Vitim and Olyokma sands. They have also discovered mammoth tusks in the delta.

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