Greenland
flat to gradually sloping icecap covers all but a narrow,
mountainous, barren, rocky coast
Grenada
volcanic in origin with central 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
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 (Peten)
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