The De Long Islands are an uninhabited archipelago often included as part of the New Siberian Islands, lying north east of Novaya Sibir. An archipelago is a landform which consists of a chain or cluster of islands. ... New Siberian Islands (Russian: Новосиби́рские острова), an archipelago, located to the North of the East Siberian coast between the Laptev Sea and the East Siberian Sea north of the Sakha (Yakutia) Republic. ... New Siberia (Russian: Но́вая Сиби́рь; English transliteration: Novaya Sibir) is one of the New Siberian Islands lying between the Laptev Sea and East Siberian Sea. ...

The five islands have a total area of 228 km². Jeannette Island (о. Жанне́тты), Henrietta Island (о. Генрие́тты) and Bennett Island (о. Бе́ннетта) were discovered in 1881 by the Jeannette expedition, commanded by Lieutenant Commander George W. DeLong, USN. These islands lie around 77°N, are partially covered by glaciers, and rise to peaks. Henrietta was the site of a research station from 1937 to 1963, while at 75 km², Bennett is the largest island. Jeannette Island (Остров Жаннетты in Russian) is one of the islands of the De Long Islands archipelago in the East Siberian Sea, discovered in 1881 by the Jeannette expedition, commanded by Lieutenant Commander George W. DeLong, USN. Area: approx. ... Henrietta Island (Остров Генриетты in Russian) is one of the islands of the De Long Islands archipelago in the East Siberian Sea, discovered in 1881 by the Jeannette expedition, commanded by Lieutenant Commander George W. DeLong, USN. Area: 12 sq km. ... Bennett Island (Остров Беннетта in Russian) is one of the islands in a group of the De Long Islands in the northern part of the East Siberian Sea. ... 1881 (MDCCCLXXXI) was a common year starting on Saturday (see link for calendar). ... USS Jeannette was originally HMS Pandora, a gunboat in the Royal Navy and was purchased in 1875 by Sir Allan Young for his arctic voyages. ... George Washington DeLong (August 22, 1844 – October 31, 1881) was a United States Navy officer and ill-fated explorer. ... The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... Aletsch glacier, Switzerland A glacier is a large, long-lasting river of ice that is formed on land and moves in response to gravity. ... 1937 (MCMXXXVII) was a common year starting on Friday (link will take you to calendar). ... 1963 (MCMLXIII) was a common year starting on Tuesday (link will take you to calendar). ...

Vilkitskogo Island (о. Вильки́цкого) and Zhokhova Island (о. Жо́хова) were discovered in 1913 and 1914 respectively. They lie slightly further south (around 76°N), are unglaciated, and lower lying. Vilkitskogo Island ( in Russian) is one of the southern islands in a group of the De Long Islands in the northern part of the East Siberian Sea. ... Zhokhova Island (Остров Жохова in Russian) is one of the islands in a group of the De Long Islands in the East Siberian Sea. ... 1913 (MCMXIII) is a common year starting on Wednesday. ... 1914 (MCMXIV) is a common year starting on Thursday. ...