word | | Terrain |
| mountainous | Guinea | generally flat coastal plain, hilly to mountainous interior |
| mountainous | Haiti | mostly rough and mountainous |
| mountainous | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| mountainous | Hong Kong | hilly to mountainous with steep slopes; lowlands in north |
| mountainous | Iran | rugged, mountainous rim; high, central basin with deserts, mountains; small, discontinuous plains along both coasts |
| mountainous | Italy | mostly rugged and mountainous; some plains, coastal lowlands |
| mountainous | Japan | mostly rugged and mountainous |
| mountainous | Liechtenstein | mostly mountainous (Alps) with Rhine Valley in western third |
| mountainous | Luxembourg | mostly gently rolling uplands with broad, shallow valleys; uplands to slightly mountainous in the north; steep slope down to Moselle flood plain in the southeast |
| mountainous | Macedonia | mountainous territory covered with deep basins and valleys; three large lakes, each divided by a frontier line; country bisected by the Vardar River |
| mountainous | Micronesia, Federated States of | islands vary geologically from high mountainous islands to low, coral atolls; volcanic outcroppings on Pohnpei, Kosrae, and Chuuk |
| mountainous | Montserrat | volcanic island, mostly mountainous, with small coastal lowland |
| mountainous | Morocco | northern coast and interior are mountainous with large areas of bordering plateaus, intermontane valleys, and rich coastal plains |
| mountainous | New Zealand | predominately mountainous with some large coastal plains |