The French founded colonies in much of eastern North America. They established forts and settlements that would become such cities as Quebec and Montreal in Canada; Detroit, Green Bay, St. Louis, Cape Girardeau, Mobile, Biloxi, Baton Rouge, New Orleans in the United States; and Port-au-Prince, Cap-Haitien, in Haiti; Cayenne in French Guiana; and Sao Luis (founded by St. Louis) in Brazil.