Glorioso Islands:
low and flat
Greece:
mostly mountains with ranges extending into the sea as
peninsulas or chains of islands
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-rising 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