Geographic coordinates: 15 56 S, 5 42 W
Map references: Africa
Area: total: 410 sq km land: 410 sq km water: 0 sq km note: includes Ascension, Gough Island, Inaccessible Island, Nightingale Island, and Tristan da Cunha Island
Area - comparative: slightly more than two times 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