Bering StraitRussia and United States
65°46′N 169°00′W
Diomede Islands
The Diomede Islands (; Russian: острова́ Диоми́да, romanized: ostrova Diomida), also known in Russia as Gvozdev Islands (Russian: острова́ Гво́здева, romanized: ostrova Gvozdeva), consist of two rocky, mesa-like islands. One is the Russian island of Big Diomede (part of Chukotka). S.

Chart
Overview
The Diomede Islands (; Russian: острова́ Диоми́да, romanized: ostrova Diomida), also known in Russia as Gvozdev Islands (Russian: острова́ Гво́здева, romanized: ostrova Gvozdeva), consist of two rocky, mesa-like islands. One is the Russian island of Big Diomede (part of Chukotka). The other is the U.S. island of Little Diomede (part of Alaska). The Diomede Islands are located in the middle of the Bering Strait between mainland Alaska and Siberia. At their closest points, the two islands are approximately 2.4 miles (3.8 km) away from each other. Because they are separated by the International Date Line, Big Diomede is almost a day ahead of Little Diomede; due to locally defined time zones, Big Diomede is 21 hours ahead of Little Diomede (20 in summer). Because of this, the islands are sometimes called Tomorrow Island (Big Diomede) and Yesterday Island (Little Diomede).
From Wikipedia, CC BY-SA 4.0
Census, cataloged
- Major islands2
- Minor islands1
- Islets0
- Rocks & skerries2
Major islands
Big Diomede Island
- Area
- 29.2 km²
- High point
- 505 m
Big Diomede Island or Ratmanov Island (Russian: Остров Ратманова, romanized: ostrov Ratmanova; Chukot: Имэлин; Inupiaq: Imaqłiq) is the western island of the two Diomede Islands in the middle of the Bering Strait. The island is home to a Russian military base, which is located midway along the island's north shore.
Little Diomede Island
- Area
- 6.3 km²
- High point
- 494 m
Little Diomede Island (Inupiaq: Iŋaliq), formerly known as Krusenstern Island, after Adam Johann von Krusenstern, (Russian: остров Крузенштерна, romanized: ostrov Kruzenshterna), is an inhabited island of Alaska.
Minor islands

Fairway Rock
- Area
- 0.12 km²
Rocks & skerries
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
Figures
Comparative heights
- Big Diomede: 505 m
- Little Diomede: 494 m
To the same scale
Islands by area
| Big Diomede Island | 29.2 km² |
| Little Diomede Island | 6.3 km² |
| Fairway Rock | 0.12 km² |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
Photographs

Big Diomede Island (Bering Strait, Russia; 65°47‘36‘‘N, 169°3‘54‘‘W)


The Bering Strait, separating Siberia from Alaska in the North Pacific. NASA image, taken by MISR sattelite
An aerial photo of Bering Strait, looking north. One can very vaguely see the Diomede Islands in the middle of it. Photograph taken from an AA aircraft on a non-stop ORD-PVG flight (American Airlines flight from Chicago to Shanghai).
An aerial photo of Bering Strait, looking north. One can very vaguely see the Diomede Islands in the middle of it. Photo taken from an AA aircraft on a non-stop ORD-PVG flight (American Airlines flight from Chicago to Shanghai).

NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team / Public domain


Sources
Facts
Photographs
- Big Diomede 1 2014-08-17. Ansgar Walk / CC BY-SA 3.0
- Wfm diomede islands. Unknown author / Public domain
- BeringSt-close-VE. NASA / Public domain
- Bering Strait - looking north - P1040613. User:Vmenkov / CC BY-SA 3.0
- Bering Strait - looking north - P1040612. User:Vmenkov / CC BY-SA 3.0
- Diomede Islands banner Little Diomede. Unites States Coast Guard, Petty Officer Richard Brahm / Public domain
- Bering Strait from south. National Geospatial-Intelligence Agency / Public domain
- Page 343-cruiseofcorwin. John Muir / Public domain
- Box representing a water bird, with humanoid face on the lid, Iñupiaq. Wmpearl / CC0
- Diomede Islands, Bering Strait (ASTER). NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team / Public domain
- The Diomede Islands in the BeringSea (picture from space). Unknown authorUnknown author / Public domain
- FMIB 45403 Diomedes. Henry Wood Elliott / Public domain