word | | Terrain |
| Ross | Antarctica | ... areas include parts of southern Victoria Land, Wilkes Land, the Antarctic Peninsula area, and parts of Ross Island on McMurdo Sound; glaciers form ice shelves along about half of the coastline, and ... |
| rough | Haiti | mostly rough and mountainous |
| rounded | Bahamas, The | long, flat coral formations with some low rounded hills |
| rounded | Malawi | narrow elongated plateau with rolling plains, rounded hills, some mountains |
| rugged | Afghanistan | mostly rugged mountains; plains in north and southwest |
| rugged | American Samoa | five volcanic islands with rugged peaks and limited coastal plains, two coral atolls (Rose Island, Swains Island) |
| rugged | Andorra | rugged mountains dissected by narrow valleys |
| rugged | Argentina | rich plains of the Pampas in northern half, flat to rolling plateau of Patagonia in south, rugged Andes along western border |
| rugged | Atlantic Ocean | ... in the northern Atlantic, counterclockwise warm-water gyre in the southern Atlantic; the ocean floor is dominated by the Mid-Atlantic Ridge, a rugged north-south centerline for the entire Atlantic basin |
| rugged | Belgium | flat coastal plains in northwest, central rolling hills, rugged mountains of Ardennes Forest in southeast |
| rugged | Bolivia | rugged Andes Mountains with a highland plateau (Altiplano), hills, lowland plains of the Amazon Basin |
| rugged | Burma | central lowlands ringed by steep, rugged highlands |
| rugged | Cape Verde | steep, rugged, rocky, volcanic |
| rugged | Chile | low coastal mountains; fertile central valley; rugged Andes in east |
| rugged | Costa Rica | coastal plains separated by rugged mountains including over 100 volcanic cones, of which several are major volcanoes |
| rugged | Cuba | mostly flat to rolling plains, with rugged hills and mountains in the southeast |
| rugged | Dominica | rugged mountains of volcanic origin |
| rugged | Dominican Republic | rugged highlands and mountains with fertile valleys interspersed |
| rugged | Faroe Islands | rugged, rocky, some low peaks; cliffs along most of coast |
| rugged | France | ... Grande-Terre is low limestone formation; most of the seven other islands are volcanic in origin Martinique: mountainous with indented coastline; dormant volcano Reunion: mostly rugged and mountainous; fertile lowlands along coast |
| rugged | French Polynesia | mixture of rugged high islands and low islands with reefs |
| rugged | French Southern and Antarctic Lands | ... of islands Iles Kerguelen: the interior of the large island of Ile Kerguelen is composed of rugged terrain of high mountains, hills, valleys, and plains with a number of peninsulas stretching off ... |
| rugged | Iran | rugged, mountainous rim; high, central basin with deserts, mountains; small, discontinuous plains along both coasts |
| rugged | Ireland | mostly level to rolling interior plain surrounded by rugged hills and low mountains; sea cliffs on west coast |
| rugged | Italy | mostly rugged and mountainous; some plains, coastal lowlands |
| rugged | Japan | mostly rugged and mountainous |
| rugged | Jersey | gently rolling plain with low, rugged hills along north coast |
| rugged | Laos | mostly rugged mountains; some plains and plateaus |
| rugged | Mali | mostly flat to rolling northern plains covered by sand; savanna in south, rugged hills in northeast |
| rugged | Mexico | high, rugged mountains; low coastal plains; high plateaus; desert |
| rugged | Monaco | hilly, rugged, rocky |