evidence: French Guiana: A tropical overseas territory Situated north of the Amazon rainforest, French Guiana is France’s only overseas territory on the American continent. Some 95% of its land is blanketed by tropical woodland. The Maroni river, which separates French Guiana from Suriname, is at the heart of people's lives. FRANCE 24 takes you to meet some of the locals, who make a living along the river's banks.