Lena River, Russia, Asia, 4,400 kilometers

The Lena River is located in Russia, in the continent of Asia.

At 4,400 kilometers in length, it is the 10th longest river in the world.

It is an important river for transportation and economic activity in the region.

The Lena River has been used as a trade route since the 17th century.

The Lena River plays an important role in the local ecosystem, with a variety of species living in and around it.

People use the river for recreational activities such as fishing and boating.

There are environmental issues such as pollution and climate change that are impacting the Lena River.

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