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Title: Montsinéry-Tonnegrande  
Author: World Heritage Encyclopedia
Language: English
Subject: Roura, Matoury, French Guiana, Tonnégrande, Communes of Guyane
Publisher: World Heritage Encyclopedia


A view of the town hall of Montsinéry
A view of the town hall of Montsinéry
Coat of arms of Montsinéry-Tonnegrande
Coat of arms
Location of the commune (in red) within French Guiana
Location of the commune (in red) within French Guiana
Country France
Overseas region and department French Guiana
Arrondissement Cayenne
Intercommunality Centre Littoral
 • Mayor (2014-2020) Patrick Lecante
Area1 634 km2 (245 sq mi)
Population (2012)2 2,483
 • Density 3.9/km2 (10/sq mi)
INSEE/Postal code 97313 / 97356
Elevation 0–112 m (0–367 ft)

1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.

2 Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.

Montsinéry-Tonnegrande is a commune of French Guiana, an overseas region and department of France located in South America.

Montsinéry-Tonnegrande is to the south-west of Cayenne. It contains an Amazon zoo and various walking trails. The town was formerly host to an internment camp for Indochinese prisoners in the 1930s.

The commune was previously known as Tonnegrande-Montsinéry, but on 27 March 1969 the name was officially changed into Montsinéry-Tonnegrande.

Montsinéry is home to a shortwave transmission facility operated by the TDF Group that is designed to target listeners in the Americas and West Africa. The site is capable of DRM digital shortwave transmissions. An image of the rotatable curtain array antenna in Montsinéry can be found by searching Flickr for "Montsinery antenne". One of their broadcasting frequencies is the 7335 kHz slot that CHU (Canada) recently abandoned.

Recently the Voice of Russia began transmitting to North America from Montsinéry — its first transmissions from the western hemisphere since the early 1990s (it previously broadcast from Havana).


The city has 2 burgs spaced by 22 km:

  • Montsinéry
  • Tonnegrande

It used to be isolated to the close main city of French Guiana, Cayenne, but now the RD5 road opens up the city.

Montsinéry is surrounded by rivers and inundated fields. It is located at the convergence of Timouthou and Montsinéry rivers. Life is peaceful in this burg. Tonnegrande, located on the right border of the Tonnegrande River is also peaceful.


Montsinéry-Tonnegrande used to be occupied by settlers. They used to run the sugar cane industry and to farm a spices plantation. Amerindians are also present in the city.

The 2 burgs developed with creole houses. In 1836, the population was made up of 1102 slaves and 167 free inhabitants feeding mainly on fishing. In 1878, Montsinnéry and Tonnegrande were gathered in a single municipal entity. In 1941 the Montsinnéry-Tonnegrande city was officially created.

Montsinéry-Tonnegrande is also known for its prisons. Indeed, in 1848, a first penitentiary was built and then closed at the end of the 19th century. In 1931, a new prison was built, called "Bagne des Anamites", in order to receive Indochinese opponents to the French presence in Indochina. These 330 men performed manual work and built in particular the road towards Cayenne. In 1943, the camp was closed.


Montsinéry is the only space in French Guiana where you can find oysters. It is also possible to make eco tourism with a pedalo visit on

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