Best attractions and places to see around Sonthonnax-La-Montagne include a blend of natural landscapes and historical sites. This commune in the Ain department of eastern France is situated on a rolling plateau, offering views over the Ain River. The area features cascades, proximity to the Jura Mountains, and various historical structures like chapels and old ovens. It serves as a base for exploring surrounding natural richness and cultural points of interest.
Last updated: May 25, 2026
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pretty little stone viaduct with 2 superimposed lanes, one for cars with 6 arches and one for the train with 11 arches. Atypical.
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The bridge separates two departments, the Jura and the Ain. "Iron bridge. For several centuries, the Ain was crossed at Thoirette by means of a ferry, known as the bac de Christouphe, the name of the commune where the passenger resided. From 1808 to 1811, the riparian communes clubbed together to build a bridge in place of this ferry. The project had been drawn up by Mr. Cordier, of Orgelet, an engineer then in charge of the direction of the Simplon road works. Various obstacles opposed the execution of this work. It was only in 1829 that an iron bridge was built, which collapsed in 1843. The department of Ain has just replaced it with an iron bridge currently open to traffic". Statistique de la France - 1855 - Ministère de l'Agriculture par Imprimerie Impériale à Paris - p53.
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Beautiful paved road, but for those who prefer dirt tracks, cross to the other side of the river! There won't be any cars and the views are even more beautiful.
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You think of a castle but only stones - but still a fantastic view
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You think castle but only stones - But fantastic view
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Pretty little viaduct which is a real must-see!
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Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical
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Definitely worth a visit, you simply have to include this double-decker bridge in your itinerary.
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The region offers a variety of natural beauty. You can visit Lake Nantua, a glacial lake known for its sapphire and emerald waters, perfect for walking or boating. The commune itself is on a scenic plateau, and you can find cascades like the Cascade de Pisse-Vache, especially impressive after rain. The area is also a gateway to the Retord Plateau and the Jura Mountains, with hiking trails leading through the gorges of the Ain River and its tributary, the Valouse.
Yes, the area is rich in history. You can explore the Oliferne Castle Ruins, which offer panoramic views from 807 meters above sea level. The Cize-Bolozon Viaduct, a railway road bridge built in 1875, is another significant landmark. Within Sonthonnax-la-Montagne, you'll find charming chapels with traditional lauze roofs, old ovens, and lavoirs. Further afield, consider visiting the historic Chartreuse de Sélignac, a former Carthusian monastery.
The region is excellent for outdoor enthusiasts. You can find numerous hiking and cycling routes. For cycling, there are routes like the ascent from Pérignat to Sonthonnax-la-Montagne, and sections of the Ain à Vélo cycle route, such as the Really quiet road along the Ain river. For more detailed routes, explore the cycling guides or running trails around Sonthonnax-La-Montagne.
Absolutely. Lake Nantua is a great family-friendly option, offering opportunities for walking along its shores, swimming, or boating. The picturesque villages of Heyriat, Napt, and Sonthonnax provide charming settings for leisurely strolls. Many of the easier hiking trails are also suitable for families.
The region is enjoyable throughout the year, depending on your preferred activities. Spring and autumn offer pleasant temperatures for hiking and cycling, with vibrant foliage or blooming landscapes. Summer is ideal for water activities at Lake Nantua. For winter sports, the nearby Station des Plans d'Hotonnes - Plateau de Retord is a popular destination.
For breathtaking vistas, head to the Oliferne Castle Ruins, which provide panoramic views of lakes and tree-covered mountains from 807 meters above sea level. The commune itself is situated on a rolling plateau, offering scenic views over the Ain River. The area around Lake Nantua also provides stunning natural scenery with its limestone cliffs and colorful waters.
Beyond the main highlights, explore the charming villages of Heyriat, Napt, and Sonthonnax to discover traditional chapels with lauze roofs, old ovens, and lavoirs that offer a glimpse into the region's past. The Cascade de Pisse-Vache is a beautiful natural feature that can be a rewarding discovery, especially after rainfall. The historic Chartreuse de Sélignac, nestled in a valley, also offers a unique historical experience.
Yes, for accommodation, you can find a spacious gîte (holiday rental) in the hamlet of Napt, located on the ground floor of a former school. This offers a unique stay experience. For more information on this specific gîte, you can visit Haut-Bugey Tourisme.
During winter, the nearby Station des Plans d'Hotonnes - Plateau de Retord becomes a hub for winter sports and nature lovers. This area is known for its opportunities for skiing and other snow-based activities, making it an appealing destination for those seeking winter adventures.
Yes, several interesting sites are within approximately 60 km. You could visit Les Glacières de Sylans, a historical ice house, or the Cuivrerie de Cerdon, which showcases 150 years of industrial history. The picturesque medieval walled town of Pérouges is also highly recommended. For a significant architectural and historical site, consider the Monastère Royal de Brou in Bourg-en-Bresse, or the 12th-century Romanesque Abbey of Tournus.
Yes, the region caters to various fitness levels. You'll find easy and pleasant walking routes, such as those around Lake Nantua. For more challenging adventures, there are intermediate and difficult trails leading to viewpoints like the Oliferne Castle Ruins, which involves a long climb. Komoot's running and cycling guides provide details on route difficulties.


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