5.0
(4)
57
riders
5
rides
Gravel biking around Bionaz, nestled in the Valpelline valley of the Aosta Valley, offers diverse terrain for outdoor enthusiasts. The region features unspoiled nature with towering mountains, verdant basins, and lush forests. Riders can explore a mix of white roads, forest roads, and paths along ancient irrigation canals, providing varied gradients and surfaces. Prominent features include the scenic Place Moulin hydroelectric reservoir and numerous alpine lakes.
Last updated: June 3, 2026
38.8km
05:03
1,550m
1,020m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(3)
27
riders
26.8km
02:17
730m
730m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3
riders
19.3km
02:31
1,020m
1,020m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
29.4km
02:18
670m
670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
13.4km
01:19
240m
240m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The Gorza mountain pasture and lake are an ideal destination for those seeking a scenic walk immersed in nature. The mountain pasture offers vast pastures and splendid views of the surrounding mountains, while the nearby alpine lake offers a quiet haven perfect for a relaxing break.
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During wintertime you can come here and start hiking from this point along the ski-tracks. At that time it is not the quietest place because of the many skiers.
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ski area, even in summer it's a postcard
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Beautiful. You can't reach the chapel by bike. You have to leave it on the path and walk there, as it's in a private area with no access allowed.
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Very peaceful walk around the lake and majestic lake.
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The Porliod Chapel. Founded on April 27, 1661, by the two brothers Panthaléon and Pierre Porliod, it is dedicated to Saint Pantaleon.
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You can also stay for just a few hours: the hour costs 50 cents (as of 2025).
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At the hut, you can enjoy good, traditional dishes at really fair prices. In good weather, you can enjoy the view of the lake from the terrace. If the weather is bad, there's plenty of space inside, too.
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Bionaz offers a selection of 5 dedicated no-traffic gravel bike trails, ranging from moderate to difficult. These routes are designed to provide an immersive experience away from vehicular traffic, allowing you to fully enjoy the stunning Alpine scenery.
The trails in Bionaz feature diverse terrain, perfect for gravel biking. You'll encounter a mix of white roads, forest roads, and paths along ancient irrigation canals known as 'ru'. These surfaces provide varied gradients and an engaging ride through verdant basins, lush forests, and alongside alpine lakes.
While many routes in Bionaz are rated as difficult, the region does offer paths suitable for a more relaxed pace. For instance, the largely flat paths along the Place Moulin Dam – Prarayer Hut loop from Oyace offer scenic views of the emerald green lake and are more accessible for various levels, though the full loop is still considered difficult. The Lexert picnic area also has tranquil trails leading into forests.
Bionaz's trails are rich with natural beauty and cultural sights. You can cycle past the impressive Place Moulin hydroelectric reservoir, one of Europe's largest dams, or explore the extensive Montagnayes nature reserve. Traditional villages with ancient wooden 'rascards' and chapels offer a glimpse into local history. Notable highlights include the Blue Lake and various mountain passes like Cignana Window, offering breathtaking viewpoints.
The best time for gravel biking in Bionaz is typically from late spring through early autumn (May to October). During these months, the weather is generally milder, and the trails are free from snow, allowing full access to the high-altitude routes and enjoying the lush landscapes.
Yes, Bionaz features several circular routes that allow you to start and end in the same location. An example is the Place Moulin Dam – Prarayer Hut loop from Oyace, which offers a complete circuit through the stunning Valpelline valley.
Parking is generally available near the starting points of many routes, particularly in and around the main villages and popular attractions like the Place Moulin Dam. Specific parking information can often be found in the detailed route descriptions on komoot.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the unparalleled tranquility, the stunning views of towering mountains and pristine lakes, and the immersive experience of cycling through unspoiled nature away from traffic.
Yes, Bionaz is dotted with mountain huts and refuges that serve as excellent rest points or overnight stays. Notable options include Rifugio Prarayer, Rifugio Nacamuli at Col Collon, and Aosta Refuge. These provide a chance to refuel and experience traditional alpine hospitality.
While Bionaz is a more remote Alpine destination, some public transport options, primarily bus services, connect the valley to larger towns in the Aosta Valley. However, direct access to specific trailheads might require additional planning or a short ride from the nearest bus stop. It's advisable to check local bus schedules in advance.
The entire Valpelline valley, where Bionaz is located, is known for its tranquil and less-trafficked nature compared to more popular Alpine destinations. Exploring routes through the extensive Montagnayes nature reserve or the numerous forest roads often leads to serene experiences away from crowds, offering a true sense of wilderness.


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