Mayotte, officially the Departmental Collectivity of Mayotte (French: Collectivité départementale de Mayotte), is an overseas collectivity of France consisting of a main island, Grande-Terre (or Mahoré), a smaller island, Petite-Terre (or Pamanzi), and several islets around these two. The archipelago is located in the northern Mozambique Channel in the Indian Ocean, namely between northwestern Madagascar and northeastern Mozambique. Mayotte's area is 374 km2, and with its estimated 194,000 people is very densely populated (520 inh/km2).Its biggest city and prefecture is Mamoudzou. The territory is geogra-phically part of the Comoro Islands, but has been politically separate since a 1974 referendum in which it elected to remain under French rule. The territory is also known as Mahoré, the native name of its main island, especially by advocates of its inclusion in the of Comoros.