Concept

Aisne

Summary
Aisne (eɪn , USalsoɛn ; ɛːn; Ainne) is a French department in the Hauts-de-France region of northern France. It is named after the river Aisne. In 2020, it had a population of 529 374. The department borders Nord (to the north), Somme and Oise (to the west), Ardennes and Marne (east), and Seine-et-Marne (south-west) and Belgium (Province of Hainaut) (to the north-east). The river Aisne crosses the area from east to west, where it joins the Oise. The Marne forms part of the southern boundary of the department with the department of Seine-et-Marne. The southern part of the department is the geographical region known as la Brie poilleuse, a drier plateau known for its dairy products and Brie cheese. According to the 2003 census, the forested area of the department was 123,392 hectares, or 16.6% for an average metropolitan area of 27.4%. The landscape is dominated by masses of rock which often have steep flanks. These rocks appear all over the region, but the most impressive examples are at Laon and the Chemin des Dames ridge. The department of Aisne includes one medium-sized city (Saint-Quentin) and three small cities (Laon, Soissons and Château-Thierry) to which may be added the conglomeration formed by Chauny and Tergnier. There are many other agglomerations of an urban character because Aisne has been densely populated since before the 19th century. The villages are numerous and rather small. The most populous commune is Saint-Quentin; the prefecture Laon is the third-most populous. As of 2019, there are 7 communes with more than 10,000 inhabitants: See also: List of the communes of the Aisne department. The Scheldt (which takes its source near Le Catelet), the Aisne, the Marne, the Ourcq, the Vesle, the Somme (which rises in Fonsommes), the Oise, and the Serre. In the south of the department, there is the Surmelin, the Verdonnelle, and the Dhuys (this river is channeled into the Dhuis Aqueduct, 131 km long, to supply drinking water to Paris since 1 October 1865 and also more recently the Leisure Park of Marne-la-Vallée).
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