Geography Saint Helena

Location:

islands in the South Atlantic Ocean, about midway between South

America and Africa

Geographic coordinates:

15 56 S, 5 42 W

Map references:

Africa

Area:

total: 410 sq km

note: includes Saint Helena Island, Ascension, and the island group

of Tristan da Cunha, which consists of Tristan da Cunha Island,

Gough Island, Inaccessible Island, and the three Nightingale Islands

water: 0 sq km

land: 410 sq km

Area - comparative:

slightly more than twice the size of Washington, DC

Land boundaries:

0 km

Coastline:

60 km

Maritime claims:

exclusive fishing zone: 200 NM

territorial sea: 12 NM

Climate:

Saint Helena - tropical; marine; mild, tempered by trade winds;

Tristan da Cunha - temperate; marine, mild, tempered by trade winds

(tends to be cooler than Saint Helena)

Terrain:

Saint Helena - rugged, volcanic; small scattered plateaus and plains

note: the other islands of the group have a volcanic origin

Elevation extremes:

lowest point: Atlantic Ocean 0 m

highest point: Queen Mary's Peak on Tristan da Cunha 2,060 m

Natural resources:

fish

Land use:

arable land: 12.9%

permanent crops: 0%

other: 87.1% (1998 est.)

Irrigated land:

NA sq km

Natural hazards:

active volcanism on Tristan da Cunha

Environment - current issues:

NA

Geography - note:

harbors at least 40 species of plants unknown anywhere else in the

world; Ascension is a breeding ground for sea turtles and sooty terns

The 2003 CIA World Factbook · 第 2069 / 3264 题