The Zeledeyeva River is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in Krasnoyarsk Krai

Krasnoyarsk Krai

Krasnoyarsk Krai is a federal subject of Russia . It is the second largest federal subject after the Sakha Republic, and Russia's largest krai, occupying an area of , which is 13% of the country's total territory. The administrative center of the krai is the city of Krasnoyarsk...

, Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. Its source is in the Byrranga Mountains

Byrranga Mountains

The Byrranga Mountains are a mountain range in the middle of the Taymyr Peninsula, Siberia, Russia, located north and west of Lake Taymyr. They run for about 1,100 km, forming a looping curve that runs roughly in a southwest to northeast direction...

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It flows across desolate tundra regions into the Kara Sea

Kara Sea

The Kara Sea is part of the Arctic Ocean north of Siberia. It is separated from the Barents Sea to the west by the Kara Strait and Novaya Zemlya, and the Laptev Sea to the east by the Severnaya Zemlya....

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The Zeledeyeva River freezes up in late September—early October and stays under the ice until June.

History

In 1922, while leading a geological expedition, Nikolay Urvantsev

Nikolay Urvantsev

Nikolay Nikolayevich Urvantsev was a Soviet geologist and explorer. He was born in the town of Lukoyanov of Nizhny Novgorod Governorate, Russian Empire to the family of a merchant...

 came across a small hut made of drift-wood, 2 km away from the estuary of the Zeledeyeva River. He and his party found there the lost mail of Roald Amundsen

Roald Amundsen

Roald Engelbregt Gravning Amundsen was a Norwegian explorer of polar regions. He led the first Antarctic expedition to reach the South Pole between 1910 and 1912 and he was the first person to reach both the North and South Poles. He is also known as the first to traverse the Northwest Passage....

's 1919 Arctic expedition trusted to crew members Peter Tessem and Paul Knutsen

Peter Tessem and Paul Knutsen

Peter Tessem and Paul Knutsen were two young men from Norway who went with fellow Norwegian explorer Roald Amundsen on his 1918 Arctic expedition aboard ship Maud. Peter Tessem was a carpenter and Paul Knutsen was an able-bodiedseaman...

. The mail and scientific data that the two ill-fated Norwegians had been carrying was lying abandoned on the Kara Sea shore strewn about by the bears

Polar Bear

The polar bear is a bear native largely within the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the world's largest land carnivore and also the largest bear, together with the omnivorous Kodiak Bear, which is approximately the same size...

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This river is now within the Great Arctic State Nature Reserve

Great Arctic State Nature Reserve

The Great Arctic State Nature Reserve is a nature reserve in Krasnoyarsk Krai, Russia...

, the largest nature reserve of Russia and one of the biggest in the world.