Bolshoy Begichev is an island in the Laptev Sea

Laptev Sea

The Laptev Sea is a marginal sea of the Arctic Ocean. It is located between the northern coast of Siberia, the Taimyr Peninsula, Severnaya Zemlya and the New Siberian Islands. Its northern boundary passes from the Arctic Cape to a point with co-ordinates of 79°N and 139°E, and ends at the Anisiy...

, 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 area is 1764 km². The island is situated within the Khatanga Gulf

Khatanga Gulf

The Khatanga Gulf or Khatanga Bay is a large tidal estuary in the Laptev Sea. It is relatively narrow, its length being 220 km with a maximum width of 54 km....

 (Russian: Хатангский залив), splitting the gulf into two strait

Strait

A strait or straits is a narrow, typically navigable channel of water that connects two larger, navigable bodies of water. It most commonly refers to a channel of water that lies between two land masses, but it may also refer to a navigable channel through a body of water that is otherwise not...

s.

A NAVTEX

Navtex

NAVTEX is an international automated medium frequency direct-printing service for delivery of navigational and meteorological warnings and forecasts, as well as urgent marine safety information to ships...

 Coast Station used to be situated on the island at 74°32’.00 N, 112°02’.00 E. However, according to the current NAVTEX list the station is no longer listed.

Adjacent Islands

• Only 8.5 km west of it lies the much smaller island known as Maliy Begichev Island
  Maliy Begichev Island
  Maliy Begichev is an island in the Laptev Sea, Russia. Its area is 15 km². This small island is situated within the Khatanga Gulf ....
  
  . Its size is only 15 km sq. The border between administrative divisions of the Russian Federation runs between the two Begichev islands, so that while Maliy Begichev is 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...
  
  , Bolshoy Begichev is in the Sakha republic.

Both islands are named after Russian polar explorer Nikifor Begichev.

• North of Bolshoy Begichev lies small Preobrazheniya Island
  Preobrazheniya Island
  Preobrazheniya Island is an elongated small island in the Laptev Sea, Russia. The island is situated off the Northern mouth of the Khatanga Gulf , 15 km north of Bolshoy Begichev Island....
  
  . This elongated granitic island was useful as a landmark for ships plying the Northern Sea Route
  Northern Sea Route
  The Northern Sea Route is a shipping lane officially defined by Russian legislation from the Atlantic Ocean to the Pacific Ocean specifically running along the Russian Arctic coast from Murmansk on the Barents Sea, along Siberia, to the Bering Strait and Far East. The entire route lies in Arctic...
  
  in the past.