word | | Terrain |
| Guadeloupe | France | ... south, Alps in east French Guiana: low-lying coastal plains rising to hills and small mountains Guadeloupe: Basse-Terre is volcanic in origin with interior mountains; Grande-Terre is low limestone formation ... |
| Guiana | France | ... hills in north and west; remainder is mountainous, especially Pyrenees in south, Alps in east French Guiana: low-lying coastal plains rising to hills and small mountains Guadeloupe: Basse-Terre is volcanic ... |
| Guiana | Venezuela | Andes Mountains and Maracaibo Lowlands in northwest; central plains (llanos); Guiana Highlands in southeast |
| Gyral | Arctic Ocean | ... thick, although pressure ridges may be three times that thickness; clockwise drift pattern in the Beaufort Gyral Stream, but nearly straight-line movement from the New Siberian Islands (Russia) to Denmark Strait ... |
| gyre | Atlantic Ocean | ... Denmark Strait, and coastal portions of the Baltic Sea from October to June; clockwise warm-water gyre (broad, circular system of currents) in the northern Atlantic, counterclockwise warm-water gyre in the ... |
| gyre | Indian Ocean | surface dominated by counterclockwise gyre (broad, circular system of currents) in the southern Indian Ocean; unique reversal of surface currents in the northern Indian Ocean; low atmospheric pressure over southwest Asia from ... |
| gyre | Pacific Ocean | surface currents in the northern Pacific are dominated by a clockwise, warm-water gyre (broad circular system of currents) and in the southern Pacific by a counterclockwise, cool-water gyre; in the ... |
| Hawaii | United 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 |
| Heard | 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 |
| Helena | Saint Helena | ... islands of this group result from volcanic 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 ... |
| higher | Antigua and Barbuda | mostly low-lying limestone and coral islands, with some higher volcanic areas |
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