The Sinnamary is a river in

French Guiana French Guiana ( or ; french: link=no, Guyane ; gcr, label=French Guianese Creole, Lagwiyann ) is an overseas department/region and single territorial collectivity of France on the northern Atlantic coast of South America in the Guianas. ...

. It is long. It rises in the center of the country, flowing north until it reaches the

Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...

near the town of

Sinnamary Sinnamary is a town and commune on the coast of French Guiana, between Kourou and Iracoubo. Sinnamary was the second France, French settlement founded in French Guiana: the town was founded in 1664. Sinnamary lies on the Sinnamary River and is ...

. Its longest tributary is the

Koursibo The Koursibo is a 135 km long river in French Guiana. It rises in the centre of the country, flowing north until it reaches the river Sinnamary. Its eventual outflow is into the Atlantic Ocean The Atlantic Ocean is the second-largest o ...

. The

Petit-Saut Dam The Petit-Saut Dam is a gravity dam on the Sinnamary River about south of Sinnamary in French Guiana. The primary purpose of the dam is to produce hydroelectric power and it supports a 116 MW power station. Construction on the dam and power sta ...

was built near Petit-Saut between 1989 and 1994.

References

Rivers of French Guiana Ramsar sites in France Rivers of France {{FrenchGuiana-river-stub