Lélex

Le Crêt de la Neige is the highest peak in the Jura Mountains and the department of Ain in France. Its elevation is 1720 m above sea level (reported as 1718 m before 2003). Its prominence is 1260 m. It is located in the commune of Thoiry.

Bellecombe (French pronunciation: [bɛlkɔ̃b]) is a commune in the Jura department in the region of Bourgogne-Franche-Comté in eastern France.

Les Molunes (French pronunciation: [le mɔlyn]) is a former commune in the Jura department in Bourgogne-Franche-Comté in eastern France. On 1 January 2017, it was merged into the new commune Septmoncel Les Molunes.

Le Reculet is the second-highest peak in the Jura Mountains, with an elevation of 1718 metres. It is located in the Ain department of France. It is a few kilometres south of the Crêt de la Neige on the territory of the town of Thoiry. The summit has views of the Pays de Gex, Geneva, Lake Geneva, the Alps, Mont Blanc, and on clear days the Chaîne des Puys. The inhabitants of Thoiry erected a cross on the summit. Le Reculet was designated as the highest point of the Jura, until the elevation of the Crêt de la Neige was remeasured as 1720 m instead of 1717.6 m.

Les Moussières (French pronunciation: [le musjɛʁ]) is a commune in the Jura department in Bourgogne-Franche-Comté in eastern France.

Septmoncel (French pronunciation: [sɛmɔ̃sɛl]) is a former commune in the Jura department in the Bourgogne-Franche-Comté region in eastern France. On 1 January 2017, it was merged into the new commune Septmoncel Les Molunes.

Crozet (French pronunciation: [kʁozɛ]) is a commune in the Ain department in eastern France. Crozet is nestled at the foot of the Jura mountains in eastern France some 15 kilometres (9 mi) from the centre of the Swiss city of Geneva and approximately 150 kilometres (93 mi) from the French city of Lyon. It is also near Geneva International Airport, at a distance of some 10 kilometres (6 mi). Its chief attraction is a cable car which carries hikers to the top of the Jura during the summer and serves a small ski resort during the winter. It has several sporting clubs: the St-Genis-Ferney-Crozet sporting association (soccer), a tennis club, and a ski club. Other places of interest include the remains of the château de Rossillon, a church (reconstructed around 1830), the Crozet forest, and the Monts-Jura ski area, which runs between Crozet and the town of Lélex in the adjacent valley.

Septmoncel Les Molunes (French pronunciation: [sɛmɔ̃sɛl le mɔlyn]) is a commune in the department of Jura, eastern France. The municipality was established on 1 January 2017 by merger of the former communes of Septmoncel (the seat) and Les Molunes.

Sergy (French pronunciation: [sɛʁʒi]; Arpitan: Sèrgi) is a commune in the Ain department in eastern France.

Lajoux (French pronunciation: [laʒu]) is a commune in the Jura department in Bourgogne-Franche-Comté in eastern France.

Thoiry (French pronunciation: [twaʁi]) is a commune in the Ain department in eastern France. The little village was the scene of the September 1926 meeting between Aristide Briand of France and Gustav Stresemann of Germany. During the meeting the two discussed proposals for finally settling the various claims from the First World War, and their common interest in the then-fashionable paneuropean ideas. Ultimately, however, the meeting came to be a missed chance on the road to European integration, as neither statesman could carry domestic opinion with them on these issues. The highest peak in the Jura Mountains, the Crêt de la Neige, is located in the commune.

Mijoux is a commune and village in the Ain department in eastern France.