French Southern and Antarctic s Geography - 2023

GEOGRAPHICAL NAMES 

Location

southeast and east of Africa, islands in the southern Indian Ocean, some near Madagascar and others about equidistant between Africa, Antarctica, and Australia; note - French Southern and Antarctic Lands include Ile Amsterdam, Ile Saint-Paul, Iles Crozet, Iles Kerguelen, Bassas da India, Europa Island, Glorioso Islands, Juan de Nova Island, and Tromelin Island in the southern Indian Ocean, along with the French-claimed sector of Antarctica, "Adelie Land"; the US does not recognize the French claim to "Adelie Land"

Geographic coordinates

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): 37 50 S, 77 32 E;

Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul): 38 72 S, 77 53 E;

Iles Crozet: 46 25 S, 51 00 E;

Iles Kerguelen: 49 15 S, 69 35 E;

Bassas da India (Iles Eparses): 21 30 S, 39 50 E;

Europa Island (Iles Eparses): 22 20 S, 40 22 E;

Glorioso Islands (Iles Eparses): 11 30 S, 47 20 E;

Juan de Nova Island (Iles Eparses): 17 03 S, 42 45 E;

Tromelin Island (Iles Eparses): 15 52 S, 54 25 E

Map references

Antarctic RegionAfrica

Area

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): total - 55 sq km; land - 55 sq km; water - 0 sq km
Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul): total - 7 sq km; land - 7 sq km; water - 0 sq km
Iles Crozet: total - 352 sq km; land - 352 sq km; water - 0 sq km
Iles Kerguelen: total - 7,215 sq km; land - 7,215 sq km; water - 0 sq km
Bassas da India (Iles Eparses): total - 80 sq km; land - 0.2 sq km; water - 79.8 sq km (lagoon)
Europa Island (Iles Eparses): total - 28 sq km; land - 28 sq km; water - 0 sq km
Glorioso Islands (Iles Eparses): total - 5 sq km; land - 5 sq km; water - 0 sq km
Juan de Nova Island (Iles Eparses): total - 4.4 sq km; land - 4.4 sq km; water - 0 sq km
Tromelin Island (Iles Eparses): total - 1 sq km; land - 1 sq km; water - 0 sq km
note: excludes "Adelie Land" claim of about 500,000 sq km in Antarctica that is not recognized by the US

Area - comparative

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): less than one-half the size of Washington, DC;

Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul): more than 10 times the size of the National Mall in Washington, DC;

Iles Crozet: about twice the size of Washington, DC;

Iles Kerguelen: slightly larger than Delaware;

Bassas da India (Iles Eparses): land area about one-third the size of the National Mall in Washington, DC;

Europa Island (Iles Eparses): about one-sixth the size of Washington, DC;

Glorioso Islands (Iles Eparses): about eight times the size of the National Mall in Washington, DC;

Juan de Nova Island (Iles Eparses): about seven times the size of the National Mall in Washington, DC;

Tromelin Island (Iles Eparses): about 1.7 times the size of the National Mall in Washington, DC

Land boundaries

total: 0 km

Coastline

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): 28 km
Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul):
Iles Kerguelen: 2,800 km
Bassas da India (Iles Eparses): 35.2 km
Europa Island (Iles Eparses): 22.2 km
Glorioso Islands (Iles Eparses): 35.2 km
Juan de Nova Island (Iles Eparses): 24.1 km
Tromelin Island (Iles Eparses): 3.7 km

Maritime claims

territorial sea: 12 nm

exclusive economic zone: 200 nm from Iles Kerguelen and Iles Eparses (does not include the rest of French Southern and Antarctic Lands); Juan de Nova Island and Tromelin Island claim a continental shelf of 200-m depth or to the depth of exploitation

Climate

Ile Amsterdam et Ile Saint-Paul: oceanic with persistent westerly winds and high humidity;

Iles Crozet: windy, cold, wet, and cloudy;

Iles Kerguelen: oceanic, cold, overcast, windy;

Iles Eparses: tropical

Terrain

Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul): a volcanic island with steep coastal cliffs; the center floor of the volcano is a large plateau;

Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul): triangular in shape, the island is the top of a volcano, rocky with steep cliffs on the eastern side; has active thermal springs;

Iles Crozet: a large archipelago formed from the Crozet Plateau is divided into two groups of islands;

Iles Kerguelen: the interior of the large island of Ile Kerguelen is composed of high mountains, hills, valleys, and plains with peninsulas stretching off its coasts;

Bassas da India (Iles Eparses): atoll, awash at high tide; shallow (15 m) lagoon;

Europa Island, Glorioso Islands, Juan de Nova Island: low, flat, and sandy;

Tromelin Island (Iles Eparses): low, flat, sandy; likely volcanic seamount

Elevation

highest point: Mont de la Dives on Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul) 867 m

lowest point: Indian Ocean 0 m

highest points throughout the French Southern and Antarctic Lands: unnamed location on Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul) 272 m; Pic Marion-Dufresne in Iles Crozet 1090 m; Mont Ross in Iles Kerguelen 1850 m; unnamed location on Bassas de India (Iles Eparses) 2.4 m;24 unnamed location on Europa Island (Iles Eparses) 24 m; unnamed location on Glorioso Islands (Iles Eparses) 12 m; unnamed location on Juan de Nova Island (Iles Eparses) 10 m; unnamed location on Tromelin Island (Iles Eparses) 7 m

Natural resources

fish, crayfish, note, Glorioso Islands and Tromelin Island (Iles Eparses) have guano, phosphates, and coconuts

note: in the 1950's and 1960's, several species of trout were introduced to Iles Kerguelen of which two, Brown trout and Brook trout, survived to establish wild populations; reindeer were also introduced to Iles Kerguelen in 1956 as a source of fresh meat for whaling crews, the herd today, one of two in the Southern Hemisphere, is estimated to number around 4,000

Natural hazards

Ile Amsterdam and Ile Saint-Paul are inactive volcanoes; Iles Eparses subject to periodic cyclones; Bassas da India is a maritime hazard since it is under water for a period of three hours prior to and following the high tide and surrounded by reefs

volcanism: Reunion Island - Piton de la Fournaise (2,632 m), which has erupted many times in recent years including 2010, 2015, and 2017, is one of the world's most active volcanoes; although rare, eruptions outside the volcano's caldera could threaten nearby cities

Geography - note

islands' component is widely scattered across remote locations in the southern Indian Ocean

Bassas da India (Iles Eparses): atoll is a circular reef atop a long-extinct, submerged volcano;

Europa Island and Juan de Nova Island (Iles Eparses): wildlife sanctuary for seabirds and sea turtles;

Glorioso Island (Iles Eparses): islands and rocks are surrounded by an extensive reef system;

Tromelin Island (Iles Eparses): climatologically important location for forecasting cyclones in the western Indian Ocean; wildlife sanctuary (seabirds, tortoises)

NOTE: The information regarding French Southern and Antarctic s on this page is re-published from the 2023 World Fact Book of the United States Central Intelligence Agency and other sources. No claims are made regarding the accuracy of French Southern and Antarctic s 2023 information contained here. All suggestions for corrections of any errors about French Southern and Antarctic s 2023 should be addressed to the CIA or the source cited on each page.