Area - comparative:
slightly more than twice the size of Washington, DC
Land boundaries:
0 km
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
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 sq km