Guernsey
mostly level with low hills in southwest

Guinea
generally flat coastal plain, hilly to mountainous interior

Guinea-Bissau
mostly low coastal plain rising to savanna in east

Guyana
mostly rolling highlands; low coastal plain; savanna in south

Haiti
mostly rough and 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

Holy See (Vatican City)
low hill

Honduras
mostly mountains in interior, narrow coastal plains

Hong Kong
hilly to mountainous with steep slopes; lowlands in north

Howland Island
low-lying, nearly level, sandy, coral island
surrounded by a narrow fringing reef; depressed central area