Land use:
arable land: 12.9% permanent crops: 0% other: 87.1% (2005)
Irrigated land:
NA
Natural hazards:
active volcanism on Tristan da Cunha, last eruption in 1961
Environment - current issues:
NA
Geography - note:
Saint Helena harbors at least 40 species of plants unknown anywhere else in the world; Ascension is a breeding ground for sea turtles and sooty terns; Queen Mary's Peak on Tristan da Cunha is the highest island mountain in the South Atlantic and a prominent landmark on the sea lanes around southern Africa