4.4
(100)
2,470
riders
126
rides
Road cycling routes around Challes-La-Montagne traverse a landscape characterized by river valleys, rolling hills, and notable architectural features like viaducts. The region offers varied terrain suitable for different road cycling preferences. Routes often follow watercourses and ascend through forested areas, providing a mix of gradients. This area is defined by its natural and engineered landmarks, making for diverse cycling experiences.
Last updated: May 23, 2026
4.8
(5)
135
riders
49.0km
02:17
560m
560m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
3.0
(1)
84
riders
113km
05:29
1,520m
1,520m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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4.4
(5)
75
riders
54.4km
02:33
640m
640m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(3)
49
riders
44.9km
02:01
420m
420m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.3
(4)
58
riders
36.8km
01:43
420m
410m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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The Lac de Nantua is a superb body of water of 141 hectares. In the heart of the Jura, it offers an ideal setting for practicing a multitude of sports. It is even possible to swim in its waters.
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An impressive work that has its Wikipedia page https://fr.wikipedia.org/wiki/Viaduc_de_Cize-Bolozon
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Nestled in a spectacular natural setting, the viaduct offers superb viewpoints over the Ain gorges. Built at the beginning of the 20th century and then rebuilt after the Second World War in 1950, it illustrates the railway and road heritage of the territory.
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pretty small 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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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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After 7 years of difficult work, the two-arched bridge in Neuville-sur-Ain was put into service in 1777. The construction of the bridge had brought masons and stonemasons from different regions, some of whom came from Beauce seem to have settled and given their name to the hamlet of Bosseron (for Beaucerons). It is a structure listed in the inventory of protected monuments since August 1946. https://www.neuvillesurain.fr/patrimoine-et-tourisme/quartiers-hameaux/neuville-le-bas/
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A must-see in Ain! It’s a chance to experience some elevation gain!
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Pretty little viaduct which is a real must-see!
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Yes, Challes-La-Montagne offers several easy road cycling routes. There are 7 routes specifically categorized as easy, perfect for a relaxed ride. These routes often follow river valleys, providing gentle gradients and scenic views.
For experienced road cyclists seeking a challenge, Challes-La-Montagne has 65 difficult routes. These routes typically feature more significant elevation gains and longer distances, traversing rolling hills and forested areas to test your endurance.
Route durations vary depending on distance and elevation. For example, the Cize Viaduct – Viaduct Cize-Bolozon loop from Bohas-Meyriat-Rignat is a moderate 37.3 miles (60.0 km) route that typically takes around 2 hours 49 minutes. Shorter routes can be completed in less time, while longer, more challenging ones will take considerably longer.
While specific parking details vary by starting point, most towns and villages that serve as common starting points for routes, such as Bohas-Meyriat-Rignat or Mérignat, offer public parking facilities. It's advisable to check local parking options for your chosen starting location.
The most favorable time for road cycling in Challes-La-Montagne is generally from spring through autumn. During these seasons, the weather is typically mild, and the landscapes are vibrant. Winter conditions can bring colder temperatures and potential for ice or snow, making some routes less suitable for road cycling.
Many routes in the region are known for their scenic beauty. The View of the Viaduc de Poncin – Neuville sur ain loop from Mérignat offers stunning vistas of the Viaduc de Poncin and the surrounding river landscapes. Another highly rated option is the Matafelon-Granges – View of Lake Nantua loop from Ceignes, which provides beautiful views of Lake Nantua.
Yes, many of the road cycling routes around Challes-La-Montagne are designed as circular loops, allowing you to start and finish at the same point. Examples include the Cize Viaduct – Viaduct Cize-Bolozon loop from Bohas-Meyriat-Rignat and the Cize-Bolozon Viaduct – Cize Viaduct loop from Hautecourt-Romanèche.
The region is rich in landmarks. You can cycle past impressive structures like the Cize-Bolozon Viaduct and the Viaduc de Poncin. Natural attractions include the Cerdon Caves and the picturesque Cascade de la Pisse Vache. Many routes also offer views of Lake Nantua.
The area is highly rated by the komoot community, with an average score of 4.6 stars from nearly 100 reviews. Reviewers often praise the diverse terrain, ranging from river valleys to rolling hills, and the presence of notable architectural features like viaducts, which make for varied and interesting cycling experiences.
While many routes involve some elevation, the 7 easy routes are generally more suitable for families or those looking for a less strenuous ride. These routes often follow flatter sections along river valleys, providing a more relaxed experience for all ages.
Many road cycling routes in Challes-La-Montagne pass through or near charming villages and towns. These locations typically offer cafes, bakeries, or small shops where you can stop for refreshments and a break. Planning your route to include these stops can enhance your cycling experience.
While the guide focuses on road cycling, the region's river valleys and proximity to bodies of water like Lake Nantua suggest potential for wild swimming. However, specific designated or safe wild swimming spots are not detailed within the cycling route information. It's recommended to research local regulations and safety for any potential swimming locations.


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