Yonne(redirected from Département of Yonne)
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a department in central France, along the middle andlower course of the Yonne River. Yonne was formed out of partsof historic Champagne and Orléanais. Area, 7, 500 sq km; popu-lation, 290, 000 (1971). The administrative center is Auxerre.Grain crops and grapes are grown there, and wine is made. Theregion raises cattle, sheep, and swine. Industries include timberprocessing, machine construction, electrical engineering, andgarment-making.
a river in France, a left tributary of the Seine. Length, 295 km; basin area, 10, 900 sq km. It rises in the Morvan Moun-tains and flows through the Paris Basin. The river is fed by snowand rain, with floods occurring during the cold season. After aheavy downpour, the water level fluctuates as much as 2–3 m.The average water flow at the mouth is 105 eu m per sec, witha maximum discharge of 1,000–1, 300 eu m per sec. The Yonneis navigable and has locks for 108 km from the mouth; it is linkedby canals with the Loire and rivers of the Rhône basin. A hy-droelectric power plant is on the Yonne.