word | | Terrain |
| flows | Saint Helena | ... 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 to the east Tristan da Cunha ... |
| fluvial | Kosovo | flat fluvial basin with an elevation of 400-700 m above sea level surrounded by several high mountain ranges with elevations of 2,000 to 2,500 m |
| foothills | Georgia | ... the south; Kolkhet'is Dablobi (Kolkhida Lowland) opens to the Black Sea in the west; Mtkvari River Basin in the east; good soils in river valley flood plains, foothills of Kolkhida Lowland |
| foothills | Papua New Guinea | mostly mountains with coastal lowlands and rolling foothills |
| foothills | Senegal | generally low, rolling, plains rising to foothills in southeast |
| forest | Armenia | Armenian Highland with mountains; little forest land; fast flowing rivers; good soil in Aras River valley |
| Forest | Belgium | flat coastal plains in northwest, central rolling hills, rugged mountains of Ardennes Forest in southeast |
| forest | 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 |
| forest | Russia | broad plain with low hills west of Urals; vast coniferous forest and tundra in Siberia; uplands and mountains along southern border regions |
| form | Antarctica | ... 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 floating ice shelves constitute 11% of ... |
| formation | France | ... mountains Guadeloupe: Basse-Terre is volcanic in origin with interior mountains; Grande-Terre is low limestone formation; most of the seven other islands are volcanic in origin Martinique: mountainous with indented coastline ... |
| formation | Norfolk Island | volcanic formation with mostly rolling plains |
| formation | Pitcairn Islands | rugged volcanic formation; rocky coastline with cliffs |
| formation | Tonga | most islands have limestone base formed from uplifted coral formation; others have limestone overlying volcanic base |