The Jura Mountains are located in both France and Switzerland. They form a natural border between these two countries and are part of the larger Western Alps system. The mountains stretch over a distance of about 350 kilometers (220 miles) from the Rhine River in the north to the Rhône River in the south.

Geographical Location of the Jura Mountains:
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The Jura Mountains are situated in Western Europe, specifically in the northern part of the Western Alps. They extend from the Swiss Plateau in the west to the Saône River in the east. The mountain range also acts as a natural boundary between the Swiss Plateau and the Rhône River valley.

France and Switzerland:
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The Jura Mountains are spread across both France and Switzerland. The French Jura, known as the Massif du Jura, covers the eastern part of France, including the regions of Bourgogne-Franche-Comté, Auvergne-Rhône-Alpes, and Grand Est. The Swiss Jura, known as the Jura Mountains, lies in the northwest of Switzerland, primarily in the cantons of Vaud, Neuchâtel, Jura, and Bern.

Characteristics of the Jura Mountains:
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1. The Jura Mountains are relatively low compared to the nearby Alps, with their highest peak, Crêt de la Neige, reaching 1,720 meters (5,643 feet) in elevation.
2. The mountains are known for their limestone and karst landscapes, featuring deep valleys, caves, and underground rivers.
3. The region is rich in biodiversity, with diverse flora and fauna, including rare species such as lynx, chamois, and ibex.
4. The Jura Mountains also have numerous lakes, such as Lake Geneva and Lac de Joux, which are popular tourist destinations.

Tourism and Activities:
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The Jura Mountains offer various recreational activities and attract tourists throughout the year. Some popular activities include:
1. Hiking and trekking along the numerous trails that traverse the mountains.
2. Skiing and snowboarding in winter, with several ski resorts located in the region.
3. Mountain biking and cycling along scenic routes.
4. Visiting the picturesque villages and towns nestled in the mountains, known for their traditional architecture and local products such as cheese and wine.

Conclusion:
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In conclusion, the Jura Mountains are located in both France and Switzerland. They form a natural border between these two countries and are known for their limestone landscapes, biodiversity, and recreational opportunities.