Ille-et-Vilaine (in Breton Il-ha-Gwilen) is a department of France located in the region of Brittany in the northwest of the country. Ille-et-Vilaine is one of the original 83 departments created during the French Revolution on March 4, 1790. It was created from part of the province of Brittany. It is bordered by the departments of Manche, Mayenne, Maine-et-Loire, Loire-Atlantique, Morbihan and Côtes-d'Armor. The department is named after its two main rivers, the Ille and the Vilaine, whose confluence is in Rennes, the vibrant capital of the department and of the region. Ille-et-Vilaine is moderately elevated above the level of the sea, with many hills; however the central part has a dense network of many tributaries to the Ille or the Vilaine from all around the large basin of Rennes. The basin itself is a rich agriculture area, as well as the north-west of the department near the Rance river.
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