Brazil–France border
The Brazil–France border is the line, located in the Amazon Rainforest, that limits the territories of Brazil and France. The border is located between the Brazilian state of Amapá and the French region of French Guiana. It is in length. It is the longest border France shares with another country, the one with Spain being next at . The Oyapock River defines part of the border, and is spanned by the Oyapock River Bridge, the only bridge crossing the border, which connects the towns of Saint-Georges (French Guiana) and Oiapoque (Brazil).