Réserve Biologique Intégrale De Merdassiers Nant Pareux
Réserve Biologique Intégrale De Merdassiers Nant Pareux
4.5
(225)
6,420
riders
28
rides
No traffic touring cycling routes in Réserve Biologique Intégrale De Merdassiers Nant Pareux are situated within the eastern Aravis mountain range, featuring a dramatic backdrop of peaks like Treu and Goenne. The reserve encompasses the upper Flon valley, an affluent of the Arly river, contributing to varied topography. This area is characterized by untouched old-growth forests, which are left to evolve naturally, providing a rich and diverse ecosystem. The terrain offers a mix of challenging ascents and scenic paths through…
Last updated: October 12, 2026
3.0
(3)
91
riders
29.1km
03:17
870m
870m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
16.0km
01:49
490m
490m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

12
riders
21.5km
01:47
680m
680m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
10
riders
20.2km
01:35
520m
520m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1.0
(1)
22
riders
38.6km
03:34
1,230m
1,220m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Réserve Biologique Intégrale De Merdassiers Nant Pareux
It's beautiful but it's quite demanding on the gravel descent, there are still a lot of stones, it shakes a lot
0
0
In some places very beautiful views of Mont Blanc.
4
0
small road with great views of Mont Blanc and the other mountains. decent, but not perfect asphalt. For me it was the descent.
3
0
Nice small pass, decent but steady climb. Great views and a nice restaurant at the pass, Refuge Auberge du Col de l'Arpettaz
3
0
Beautiful small pass, small roads with little traffic, great views. Nice restaurant on the pass.
3
0
I went down this side, the views are nicer to enjoy.
3
0
Incredibly beautiful road, and quite demanding on gravel
1
0
There are over 30 dedicated no-traffic touring cycling routes in the Réserve Biologique Intégrale De Merdassiers Nant Pareux, offering a variety of experiences through its stunning natural landscapes.
The Réserve Biologique Intégrale De Merdassiers Nant Pareux primarily features challenging no-traffic touring cycling routes, with 19 classified as difficult and 11 as moderate. There is also one easy route available for those seeking a more relaxed ride. Routes often involve significant elevation changes due to the mountainous terrain of the Aravis range.
Yes, many of the no-traffic touring cycling routes in the reserve are circular, allowing you to start and end at the same point. For example, you could try the challenging Col des Aravis – The Road of Thirst loop from Pierre Martine or the Saint-Nicolas Church loop from Les Rosets.
The routes wind through the untouched old-growth forests and offer panoramic views of the Aravis mountain range, including peaks like Treu and Tête de l'Aulp. You'll also encounter the serene upper Flon valley and its torrents, contributing to the rich biodiversity of this integral biological reserve.
The best time for touring cycling is typically from late spring to early autumn (May to October) when the weather is milder and the mountain passes are clear of snow. During these months, the forests are lush, and the views are at their most spectacular. Winter cycling is generally not recommended due to snow and ice conditions.
While most routes are moderate to difficult, there is one easy no-traffic touring cycling route available in the Réserve Biologique Intégrale De Merdassiers Nant Pareux that could be suitable for families or beginners. It's advisable to check the specific route details and elevation profiles on komoot to ensure it matches your family's fitness level.
The Réserve Biologique Intégrale De Merdassiers Nant Pareux is highly rated by the komoot community, with an average score of 4.5 stars from 123 ratings. Reviewers often praise the quiet, traffic-free roads, the immersive experience of cycling through ancient forests, and the breathtaking mountain vistas that provide a true sense of escape and natural beauty.
As an integral biological reserve, the area is dedicated to allowing its forest ecosystem to evolve naturally without human intervention. While cycling is permitted on designated routes, it's crucial to stay on marked paths, respect the wildlife, and leave no trace. The primary draw is the raw, untamed beauty, so preserving its natural state is paramount.
Parking is typically available at the start points of many routes, often in nearby villages or designated trailheads surrounding the reserve. For instance, routes like the Col de l'Arpettaz – Route de la Soif loop from Col de L'Arpettaz often have parking facilities nearby. Always check the specific route details on komoot for recommended parking locations.
While the reserve itself is focused on untouched nature, the surrounding communes like Ugine and Saint-Nicolas-la-Chapelle offer amenities such as cafes and restaurants. Many routes start or pass through these areas, providing opportunities for refreshments and rest stops. It's always a good idea to plan your route and check for available services beforehand.
As a biodiversity hotspot, the reserve is home to a rich variety of flora and fauna. While cycling, you might observe various bird species, insects, and smaller mammals. The untouched forests provide crucial habitats, so maintaining a respectful distance and quiet demeanor will increase your chances of a wildlife sighting.
Yes, some routes offer significant distances suitable for longer touring rides. For example, the Col de l'Arpettaz – Saint-Nicolas Church loop from Saint-Nicolas-la-Chapelle covers nearly 39 kilometers with substantial elevation gain, providing a full day's adventure for experienced touring cyclists.


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