Grenada
volcanic in origin with central mountains
Guam
volcanic origin, surrounded by coral reefs; relatively flat
coralline limestone plateau (source of most fresh water), with steep
coastal cliffs and narrow coastal plains in north, low hills in
center, mountains in south
Guatemala
mostly mountains with narrow coastal plains and rolling
limestone plateau
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)
urban; low hill