word | | Terrain |
| plains | Niger | predominately desert plains and sand dunes; flat to rolling plains in south; hills in north |
| plains | Nigeria | southern lowlands merge into central hills and plateaus; mountains in southeast, plains in north |
| plains | Norfolk Island | volcanic formation with mostly rolling plains |
| plains | Norway | glaciated; mostly high plateaus and rugged mountains broken by fertile valleys; small, scattered plains; coastline deeply indented by fjords; arctic tundra in north |
| plains | Panama | interior mostly steep, rugged mountains and dissected, upland plains; coastal areas largely plains and rolling hills |
| plains | 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 |
| plains | Portugal | mountainous north of the Tagus River, rolling plains in south |
| plains | Saint Helena | ... activity associated with the Atlantic Mid-Ocean Ridge Saint Helena: rugged, volcanic; small scattered plateaus and plains Ascension: surface covered by lava flows and cinder cones of 44 dormant volcanoes; ground rises ... |
| plains | Senegal | generally low, rolling, plains rising to foothills in southeast |
| plains | Serbia | extremely varied; to the north, rich fertile plains; to the east, limestone ranges and basins; to the southeast, ancient mountains and hills |
| plains | Swaziland | mostly mountains and hills; some moderately sloping plains |
| plains | Switzerland | mostly mountains (Alps in south, Jura in northwest) with a central plateau of rolling hills, plains, and large lakes |
| plains | Taiwan | eastern two-thirds mostly rugged mountains; flat to gently rolling plains in west |
| plains | Tanzania | plains along coast; central plateau; highlands in north, south |
| plains | Trinidad and Tobago | mostly plains with some hills and low mountains |
| plains | Ukraine | most of Ukraine consists of fertile plains (steppes) and plateaus, mountains being found only in the west (the Carpathians), and in the Crimean Peninsula in the extreme south |
| plains | United Kingdom | mostly rugged hills and low mountains; level to rolling plains in east and southeast |
| plains | Uruguay | mostly rolling plains and low hills; fertile coastal lowland |
| plains | Vanuatu | mostly mountainous islands of volcanic origin; narrow coastal plains |
| plains | Venezuela | Andes Mountains and Maracaibo Lowlands in northwest; central plains (llanos); Guiana Highlands in southeast |
| plains | Yemen | narrow coastal plain backed by flat-topped hills and rugged mountains; dissected upland desert plains in center slope into the desert interior of the Arabian Peninsula |
| plateau | Algeria | mostly high plateau and desert; some mountains; narrow, discontinuous coastal plain |
| plateau | Angola | narrow coastal plain rises abruptly to vast interior plateau |
| plateau | Argentina | rich plains of the Pampas in northern half, flat to rolling plateau of Patagonia in south, rugged Andes along western border |
| plateau | Australia | mostly low plateau with deserts; fertile plain in southeast |
| plateau | Bolivia | rugged Andes Mountains with a highland plateau (Altiplano), hills, lowland plains of the Amazon Basin |
| plateau | Burundi | hilly and mountainous, dropping to a plateau in east, some plains |
| plateau | Cameroon | diverse, with coastal plain in southwest, dissected plateau in center, mountains in west, plains in north |
| plateau | Central African Republic | vast, flat to rolling, monotonous plateau; scattered hills in northeast and southwest |