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World Factbook: Saint Helena Geography


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Saint Helena



Saint Helena Geography:

Location:
islands in the South Atlantic Ocean, about midway between South America and Africa

Geographic coordinates:
15 56 S, 5 42 W

Map references:


Area:
total: 410 sq km
land: 410 sq km
water: 0 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

Area - comparative:
Slightly more than twice the size of Washington, DC

Land boundaries:
total: 0 km
border countries: NA

Coastline:
60 km

Maritime claims:
territorial sea: 12 NM
exclusive fishing zone: 200 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 the other islands of the group have a volcanic origin
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%
(2001)

Irrigated land:
NA

Natural hazards:
Active volcanism on Tristan da Cunha

Environment - current issues:
NA

Environment - international agreements:
party to: NA
signed, but not ratified: 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


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Washington D.C.: Central Intelligence Agency, 2005
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