Jura (department)  Jura ( , ) is a department in the Bourgogne-Franche-Comté region in Eastern France. Named after the Jura Mountains, its prefecture is Lons-le-Saunier and subprefectures are Dole and Saint-Claude. In 2016, it had a population of 260,517. Historically, Jura belonged to the Free County of Burgundy, known in French as the Franche-Comté. Dole was the capital until the region was conquered by Louis XIV and the capital was moved to Besançon. Dole is now a "sous-préfecture", or sub-prefecture, of Jura. As early as the 13th century, inhabitants of the southern two-thirds of Jura spoke a dialect of Arpitan language. It continued to be spoken in rural areas into the 20th century. Jura is one of the original 83 departments, it being the created during the French Revolution on March 4, 1790. It was created from part of the former province of Franche-Comté. The prefecture (capital) is Lons-le-Saunier. Population development since 1801:  Jura is one of eight departments of the Bourgogne-Franche-Comté region and is surrounded by the French departments of Doubs, Haute-Saône, Côte-d'Or, Saône-et-Loire, and Ain, as well as the Swiss canton of Vaud on the east. The Jura mountains are wooded and rolling, not craggy and rocky like the Alps. Many lakes can be found throughout the Jura - the largest natural lake being Lac de Chalain, measuring 3 km long and 1 km wide. Lac de Vouglans was formed after the building of a hydro-electric dam. It is one of the largest man-made lakes in France. The President of the General Council is Jean Raquin (Miscellaneous Right). The climate of the Jura varies greatly by elevation. The lower valleys are temperate and pleasant, but the high mountain valleys have bitterly cold winters. Jura is a wine-growing region. The Jura wines are very distinctive and unusual wines, such as vin jaune, which is made by a similar process to sherry, developing under a flor of yeast. This is made from the local Savagnin grape variety.