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France
Auvergne Rhône Alpes
Bourg-En-Bresse

Cize

Attractions and Places To See around Cize - Top 20

Attractions and places to see around Cize are situated in a region characterized by its position at the foot of the Pyrénées mountains, offering diverse landscapes. The area features historical sites and natural viewpoints, alongside scenic routes along the Ain river. Cize provides opportunities to explore both man-made structures and natural formations, making it a varied destination for outdoor activities.

Best attractions and places to see around Cize

  • The most popular attractions is Cize-Bolozon Viaduct, a viaduct that crosses the Ain river. It is 73 meters high and was built in 1875, offering magnificent views.
  • Another must-see spot is Jarbonnet Rocks, a viewpoint featuring cliffs and scenic trails. Visitors can experience magnificent views from this accessible location, with trails requiring sure-footedness at times.
  • Visitors also love Really quiet road, a scenic route along the Ain river. This section is part of the Ain à Vélo cycle route, offering exciting rock formations and interesting flora.
  • Cize is known for its historical castles, impressive viaducts, and natural viewpoints. The region offers a variety of attractions to see and explore, from ancient ruins to serene river paths.
  • The attractions around Cize are appreciated by the komoot community, with 21 upvotes and 42 photos shared by visitors.

Last updated: May 4, 2026

Ruins of Jasseron Castle

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Built in the 13th century, the castle of Jasseron was a colossal work, it dominated the plain of Bresse by more than 170 meters, it is estimated at more than 1250 meters of masonry. It was from 1601 that the castle was abandoned and for lack of maintenance it slowly began to die. Walls and roofs crumble one by one. In addition, the inhabitants of Jasseron fetch the materials needed to build new houses. In particular, stones and doors are taken there. Time and weather accentuate this demolition. Only the keep seems to still resist, it had a diameter of about eight meters and its walls two meters thick, and had nearly six floors. The first would have served as a dungeon or arms depot. The second, a little higher, consisted of a loophole and had dungeon access. The third floor served as accommodation. The fourth floor had a loophole. The fifth, meanwhile, was the defense floor. Finally the sixth floor was also a defense floor, note that this floor was added in 1434.
Source: chateau-fort-manoir-chateau.eu/chateaux-ain-chateau-a-jasseron-chateau-de-jasseron.html

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Cize-Bolozon Viaduct

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The Cize-Bolozn viaduct is a railway road bridge that crosses the Ain river. It is 73 meters high and was built in 1875.

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Auberge du Col

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by bike, view of oufff

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Really quiet road

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A quiet road along the Ain river. It is part of the Ain à Vélo cycle route.
This section is called Ain à Vélo no.22 - And in the middle runs a river.

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Chartreuse de Sélignac

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The former charterhouse of Val-Saint-Martin de Sélignac, which became the Saint-Bruno house in 2001, is a former Carthusian monastery, located in the valley of Sélignac (or Sélignat), in Simandre-sur-Suran in the department of Ain in France. It shelters a few lay people living according to the spirit of Saint Bruno, placed under the spiritual authority of the Reverend Father General of the Carthusian Order.

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Popular around Cize

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GravelHit3️⃣8️⃣
April 22, 2026, Viaduc de Cize-Bolozon

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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Pretty little viaduct which is a real must-see!

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Definitely worth a visit, you simply have to include this double-decker bridge in your itinerary.

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by bike, view of oufff

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Nestled at the bottom of a valley, on the side of the road which goes from Bourg en Bresse to Oyonnax, this building is only clearly revealed nearby, on the GR, which runs alongside the enclosure. Drainages cut the path in several places, to a greater or lesser extent depending on the rainfall, but are designed to be passable. Access is easy, provided you are properly shod and covered depending on the season.

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Passage of the viaduct during La Bisou 2023.

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Frequently Asked Questions

What historical sites can I explore around Cize?

Cize offers several historical sites. You can visit the Ruins of Jasseron Castle, a colossal 13th-century work that once dominated the Bresse plain. Another significant historical site is the Chartreuse de Sélignac, a former Carthusian monastery nestled in a valley, now known as the Saint-Bruno house.

Are there any impressive viewpoints in the Cize area?

Yes, the Jarbonnet Rocks offer magnificent views from cliffs and scenic trails. This viewpoint is accessible, though some trails require sure-footedness. Additionally, the Cize-Bolozon Viaduct, a railway road bridge crossing the Ain river, provides a great vantage point with magnificent views.

What outdoor activities can I do near Cize's attractions?

The area around Cize is excellent for outdoor activities. You can find numerous hiking trails, including moderate loops like 'The rocks of Jarbonnet' and 'Mont Balvay'. For cyclists, there are road cycling routes and general cycling routes, many of which incorporate the scenic Cize-Bolozon Viaduct.

Are there any scenic routes for cycling or walking along the river?

Absolutely. The Really quiet road offers a scenic route along the Ain river. This section is part of the Ain à Vélo cycle route, featuring exciting rock formations and interesting flora, making it an easy and pleasant tour for both cyclists and walkers.

What is the Cize-Bolozon Viaduct and why is it worth visiting?

The Cize-Bolozon Viaduct is a remarkable railway road bridge that crosses the Ain river. Built in 1875, it stands 73 meters high and is notable for being a double-decker bridge, with a railway line (including TGV) above and a road bridge below. It offers magnificent views of the surrounding landscape.

What do visitors enjoy most about the attractions around Cize?

Visitors particularly appreciate the diverse landscapes, from historical sites to natural viewpoints. The magnificent views from places like the Cize-Bolozon Viaduct and Jarbonnet Rocks are highly rated. The quiet, scenic routes along the Ain river, such as the Really quiet road, are also very popular for their natural beauty and tranquility.

Are there any challenging hiking trails near Cize?

Yes, for those seeking a challenge, the 'Val de Buenc and the Ain Gorges' route is a difficult hiking trail spanning over 20 km. There are also several moderate trails like 'Mont Balvay – loop' and 'Grand-Corrent Climb' that offer rewarding experiences.

Can I find information about the local flora and rock formations?

Yes, the Really quiet road along the Ain river is known for its exciting rock formations and interesting flora. It's a great place to observe the natural environment of the region.

What is the significance of the Ruins of Jasseron Castle?

The Ruins of Jasseron Castle represent a significant piece of local history. Built in the 13th century, it was a massive fortification overlooking the Bresse plain. Though largely in ruins today, its keep, with walls two meters thick, still stands as a testament to its former grandeur and defensive purpose.

What kind of cycling routes are available around Cize?

Cize offers a variety of cycling routes. You can find road cycling routes, including challenging loops like 'Cize Viaduct – Viaduct Cize-Bolozon' which can be over 60 km. There are also general cycling routes, such as the 'Ain à Vélo' section along the Ain river, suitable for a more relaxed ride.

Is the Chartreuse de Sélignac accessible to visitors?

The Chartreuse de Sélignac, now the Saint-Bruno house, is nestled at the bottom of a valley. Access is considered easy via the GR path that runs alongside its enclosure, provided you are properly shod and dressed for the season. Drainages may cut the path in places, but they are designed to be passable.

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