The CIA World Factbook Edition 1990 Geography
Terrain In 36 editions of 36.
Terrain was published in 36 editions of the CIA World Factbook, from 1990 to 2025. The 1990 edition carries it in 249 entries, in its Geography section. Every entry is shown as that edition published it.
- entries in the 1990 edition
- 249
- the first edition with it
- 1990
- the latest edition with it
- 2025
Published as “Terrain” (1990 to 2025).
the entry has the field in that editionnot in that editionthe open editionEach entry below ends in its editions with Terrain, 1990 to 2025. Point at a year above to follow it down; choose one in a row to read that edition’s text there.
No entries match. Try a shorter word.
Entries with Terrain in each edition
Select a bar to open that edition.
World
1 entryWorld
- highest elevation is Mt. Everest at 8,848 meters and lowest elevation is the Dead Sea at 392 meters below sea level;
- greatest ocean depth is the Marianas Trench at 10,924 meters
Africa
61 entriesCameroon
- diverse with coastal plain in southwest,
- dissected plateau in center,
- mountains in west,
- plains in north
Central African Republic
- vast,
- flat to rolling,
- monotonous plateau;
- scattered hills in northeast and southwest
Zaire now Democratic Republic of the Congo
vast central basin is a low-lying plateau; mountains in east
Liberia
mostly flat to rolling coastal plains rising to rolling plateau and low mountains in northeast
Mali
mostly flat to rolling northern plains covered by sand; savanna in south, rugged hills in northeast
Mozambique
- mostly coastal lowlands,
- uplands in center,
- high plateaus in northwest,
- mountains in west
Nigeria
southern lowlands merge into central hills and plateaus; mountains in southeast, plains in north
St. Helena now Saint Helena, Ascension, and Tristan da Cunha
rugged, volcanic; small scattered plateaus and plains
Seychelles
- Mahe Group is granitic,
- narrow coastal strip,
- rocky,
- hilly;
- others are coral,
- flat,
- elevated reefs
Sierra Leone
- coastal belt of mangrove swamps,
- wooded hill country,
- upland plateau,
- mountains in east
Togo
- gently rolling savanna in north;
- central hills;
- southern plateau;
- low coastal plain with extensive lagoons and marshes
Western Sahara
mostly low, flat desert with large areas of rocky or sandy surfaces rising to small mountains in south and northeast
Antarctic Region
5 entriesAntarctica
- about 98% thick continental ice sheet, with average elevations between 2,000 and 4,000 meters;
- mountain ranges up to 5,000 meters high;
- ice-free coastal areas include parts of southern Victoria Land, Wilkes Land, and the scientific research areas of Graham Land and Ross Island on McMurdo Sound;
- glaciers form ice shelves along about half of coastline
Heard Island and McDonald Islands
Heard Island--bleak and mountainous, with an extinct volcano; McDonald Islands--small and rocky
South Georgia and the South Sandwich Islands
- most of the islands, rising steeply from the sea, are rugged and mountainous;
- South Georgia is largely barren and has steep, glacier-covered mountains;
- the South Sandwich Islands are of volcanic origin with some active volcanoes
Arctic Region
4 entriesGreenland
- flat to gradually sloping icecap covers all but a narrow,
- mountainous,
- barren,
- rocky coast
Iceland
mostly plateau interspersed with mountain peaks, icefields; coast deeply indented by bays and fiords
Jan Mayen
volcanic island, partly covered by glaciers; Beerenberg is the highest peak, with an elevation of 2,277 meters
Svalbard
- wild, rugged mountains;
- much of high land ice covered;
- west coast clear of ice about half the year;
- fjords along west and north coasts
Asia
14 entriesIndia
- upland plain (Deccan Plateau) in south,
- flat to rolling plain along the Ganges,
- deserts in west,
- Himalayas in north
Korea, North now North Korea
- mostly hills and mountains separated by deep,
- narrow valleys;
- coastal plains wide in west,
- discontinuous in east
Mongolia
- vast semidesert and desert plains;
- mountains in west and southwest;
- Gobi Desert in southeast
Nepal
- Tarai or flat river plain of the Ganges in south,
- central hill region,
- rugged Himalayas in north
Central America and the Caribbean
32 entriesGuadeloupe
Basse-Terre is volcanic in origin with interior mountains; Grand-Terre is low limestone formation
Nicaragua
extensive Atlantic coastal plains rising to central interior mountains; narrow Pacific coastal plain interrupted by volcanoes
Panama
- interior mostly steep,
- rugged mountains and dissected,
- upland plains;
- coastal areas largely plains and rolling hills
Puerto Rico
mostly mountains with coastal plain belt in north; mountains precipitous to sea on west coast
St. Vincent and the Grenadines now Saint Vincent and the Grenadines
volcanic, mountainous; Soufriere volcano on the island of St. Vincent
Europe
37 entriesAustria
mostly mountains with Alps in west and south; mostly flat, with gentle slopes along eastern and northern margins
Belgium
- flat coastal plains in northwest,
- central rolling hills,
- rugged mountains of Ardennes Forest in southeast
France
mostly flat plains or gently rolling hills in north and west; remainder is mountainous, especially Pyrenees in south, Alps in east
Germany, Federal Republic of now Germany
- lowlands in north,
- uplands in center,
- Bavarian Alps in south
Ireland
mostly level to rolling interior plain surrounded by rugged hills and low mountains; sea cliffs on west coast
Luxembourg
- mostly gently rolling uplands with broad, shallow valleys;
- uplands to slightly mountainous in the north;
- steep slope down to Moselle floodplain in the southeast
Norway
- glaciated;
- mostly high plateaus and rugged mountains broken by fertile valleys;
- small, scattered plains;
- coastline deeply indented by fjords;
- arctic tundra in north
Romania
central Transylvanian Basin is separated from the plain of Moldavia on the east by the Carpathian Mountains and separated from the Walachian Plain on the south by the Transylvanian Alps
Soviet Union
- broad plain with low hills west of Urals;
- vast coniferous forest and tundra in Siberia,
- deserts in Central Asia,
- mountains in south
Switzerland
mostly mountains (Alps in south, Jura in northwest) with a central plateau of rolling hills, plains, and large lakes
Middle East
19 entriesIran
- rugged, mountainous rim;
- high, central basin with deserts, mountains;
- small, discontinuous plains along both coasts
Jordan
mostly desert plateau in east, highland area in west; Great Rift Valley separates East and West Banks of the Jordan River
United Arab Emirates
flat, barren coastal plain merging into rolling sand dunes of vast desert wasteland; mountains in east
Yemen Arab Republic
- narrow coastal plain (Tihama);
- western mountains;
- flat dissected plain in center sloping into desert interior of Arabian Peninsula
Yemen, People's Democratic Republic of now People's Democratic Republic of Yemen
- mostly upland desert plains;
- narrow,
- flat,
- sandy coastal plain backed by flat-topped hills and rugged mountains
North America
6 entriesUnited States
- vast central plain, mountains in west, hills and low mountains in east;
- rugged mountains and broad river valleys in Alaska;
- rugged, volcanic topography in Hawaii
Oceania
34 entriesGuam
- volcanic origin, surrounded by coral reefs;
- relatively flat coraline limestone plateau (source of most fresh water) with steep coastal cliffs and narrow coastal plains in north, low-rising hills in center, mountains in south
Howland Island
- low-lying,
- nearly level,
- sandy,
- coral island surrounded by a narrow fringing reef;
- depressed central area
Micronesia, Federated States of now Federated States of Micronesia
islands vary geologically from high mountainous islands to low, coral atolls; volcanic outcroppings on Pohnpei, Kosrae, and Truk
Northern Mariana Islands
- southern islands are limestone with level terraces and fringing coral reefs;
- northern islands are volcanic;
- highest elevation is 471 meters (Mt. Tagpochu on Saipan)
Pacific Islands, Trust Territory of the now Palau
islands vary geologically from the high mountainous main island of Babelthuap to low, coral islands usually fringed by large barrier reefs
Tonga
most islands have limestone base formed from uplifted coral formation; others have limestone overlying volcanic base
Wake Island
- atoll of three coral islands built up on an underwater volcano;
- central lagoon is former crater, islands are part of the rim;
- average elevation less than four meters
South America
14 entriesArgentina
- rich plains of the Pampas in northern half,
- flat to rolling plateau of Patagonia in south,
- rugged Andes along western border
Brazil
mostly flat to rolling lowlands in north; some plains, hills, mountains, and narrow coastal belt
Ecuador
coastal plain (Costa), inter-Andean central highlands (Sierra), and flat to rolling eastern jungle (Oriente)
Paraguay
- grassy plains and wooded hills east of Rio Paraguay;
- Gran Chaco region west of Rio Paraguay mostly low, marshy plain near the river, and dry forest and thorny scrub elsewhere
Peru
- western coastal plain (costa),
- high and rugged Andes in center (sierra),
- eastern lowland jungle of Amazon Basin (selva)
Venezuela
- Andes mountains and Maracaibo lowlands in northwest;
- central plains (llanos);
- Guyana highlands in southeast
Southeast Asia
18 entriesOceans
4 entriesArctic Ocean
- central surface covered by a perennial drifting polar icepack which averages about 3 meters in thickness, although pressure ridges may be three times that size;
- clockwise drift pattern in the Beaufort Gyral Stream, but nearly straight line movement from the New Siberian Islands (USSR) to Denmark Strait (between Greenland and Iceland);
- the ice pack is surrounded by open seas during the summer, but more than doubles in size during the winter and extends to the encircling land masses;
- the ocean floor is about 50% continental shelf (highest percentage of any ocean) with the remainder a central basin interrupted by three submarine ridges (Alpha Cordillera, Nansen Cordillera, and Lomonsov Ridge);
- maximum depth is 4,665 meters in the Fram Basin
Atlantic Ocean
- surface usually covered with sea ice in Labrador Sea, Denmark Strait, and Baltic Sea from October to June;
- clockwise warm water gyre (broad, circular system of currents) in the north Atlantic, counterclockwise warm water gyre in the south Atlantic;
- the ocean floor is dominated by the Mid-Atlantic Ridge, a rugged north-south centerline for the entire Atlantic basin;
- maximum depth is 8,605 meters in the Puerto Rico Trench
Indian Ocean
- surface dominated by counterclockwise gyre (broad, circular system of currents) in the south Indian Ocean;
- unique reversal of surface currents in the north Indian Ocean--low pressure over southwest Asia from hot, rising, summer air results in the southwest monsoon and southwest-to-northeast winds and currents, while high pressure over northern Asia from cold, falling, winter air results in the northeast monsoon and northeast-to-southwest winds and currents;
- ocean floor is dominated by the Mid-Indian Ocean Ridge and subdivided by the Southeast Indian Ocean Ridge, Southwest Indian Ocean Ridge, and Ninety East Ridge;
- maximum depth is 7,258 meters in the Java Trench
Pacific Ocean
- surface in the northern Pacific dominated by a clockwise, warm water gyre (broad, circular system of currents) and in the southern Pacific by a counterclockwise, cool water gyre;
- sea ice occurs in the Bering Sea and Sea of Okhotsk during winter and reaches maximum northern extent from Antarctica in October;
- the ocean floor in the eastern Pacific is dominated by the East Pacific Rise, while the western Pacific is dissected by deep trenches;
- the world's greatest depth is 10,924 meters in the Marianas Trench
Cite this page
Central Intelligence Agency. The World Factbook 1990, “Terrain”, all entries. Archived by The Factbook, thefactbook.org/fields/terrain/1990.