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
Martinique: mountainous with indented coastline; dormant volcano
Reunion: mostly rugged and mountainous; fertile lowlands along coast
Elevation extremes:
lowest point: Rhone River delta -2 m
highest point: Mont Blanc 4,807 m
note: in order to assess the possible effects of climate change on the ice and snow cap of Mont Blanc, its surface and peak have been extensively and periodically measured in recent years; these new peak measurements have exceeded the traditional height of 4,807 m and have varied between 4,808 m and 4,811 m; the actual rock summit is 4,792 m and is 40 m away from the ice-covered summit
Natural resources:
metropolitan France: coal, iron ore, bauxite, zinc, uranium, antimony, arsenic, potash, feldspar, fluorspar, gypsum, timber, fish
French Guiana: gold deposits, petroleum, kaolin, niobium, tantalum, clay