What is the name of the only colony on the South American continent?
The answer is French Guiana.
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The name of the only colony on the South American continent is French Guiana. It is an overseas territory of France and is located on the northeastern coast of South America. French Guiana is unique as it is the only remaining territory in the Americas where European colonization is still ongoing. French Guiana is known for its diverse ecosystems, including tropical rainforests and marshes, and it is home to the Guiana Space Centre, which is Europe's main spaceport. To find this answer, you can search for "colony on South American continent" or "overseas territory of France in South America."
Check this map for the only name with a European country's name in parentheses under it.
http://www.worldatlas.com/webimage/countrys/sa.htm