of Paris. In the 1950s and the 1960s, thousands of immigrants settled in the communes bordering the city. In 1959, under President Charles De Gaulle, a new region was created out of six departments, which corresponded approximately with the historic region, with the name District de la région de Paris ("District of the Paris Region"). On 6 May 1976, as part of the process of regionalisation, the district was reconstituted with increased administrative and political powers and renamed the Île-de-France region. Geography Île-de-France is in the north of France, neighboring Hauts-de-France to the north, Grand Est to the east, Bourgogne-Franche-Comté to the southeast, Centre-Val-de-Loire to the southwest, and Normandy to the west. Departments Île-de-France has a land area of . It is composed of eight departments centred on its innermost department and capital, Paris. Around the department and municipality of Paris, urbanisation fills a first concentric ring of three departments commonly known as the petite couronne ("small ring"); it extends into a second outer ring of four departments known as the grande couronne ("large ring"). The former department of Seine, abolished in 1968, included the city proper and parts of the petite couronne. The petite couronne consists of the departments of Hauts-de-Seine, Seine-Saint-Denis and Val-de-Marne; the grande couronne consists of those of Seine-et-Marne, Yvelines, Essonne and Val-d'Oise. Politically, the region is divided into 8 departments, 25 arrondissements, 155 cantons and 1,276 communes, out of the total of 35,416 in metropolitan France. Topography The outer parts of the Île-de-France remain largely rural. Agricultural land, forest and natural spaces occupy 78.9 percent of the region, and 28 percent of the region's land is in urban use. the remaining 24 percent is rivers, forests, woods, and ponds. The River Seine flows through the middle of the region, which is crisscrossed by its tributaries and sub-tributaries, including the Rivers Marne, Oise and Epte. The River Eure does not cross the region but receives water from several rivers in the Île-de-France, including the Drouette and the Vesgre. The major rivers are navigable, and, because of the modest variations of altitude in the region (between 10 and 200 meters), they have a tendency to meander and curve. They also create many lakes and ponds, some of which have been transformed into recreation areas, including Moisson-Mousseaux, Cergy-Neuville and Villeneuve-Saint-Georges. Economy Paris region (Île-de-France) produced €742 billion (Gross domestic product) or around 1/3 of the economy of France