Réserve Biologique Intégrale De Merdassiers Nant Pareux
Réserve Biologique Intégrale De Merdassiers Nant Pareux
4.6
(267)
14,830
riders
58
rides
Road cycling routes in Réserve Biologique Intégrale De Merdassiers Nant Pareux are situated within the eastern Aravis mountain range in Savoie, France. The region is characterized by challenging mountain passes, deep valleys, and extensive forest ecosystems. Cyclists encounter significant elevation gains on paved surfaces, with routes often winding through varied terrain from deciduous forests to open alpine meadows. Panoramic views of the surrounding peaks, including the Mont Blanc massif, are a common feature along these routes.
Last updated: July 5, 2026
4.5
(4)
102
riders
53.9km
03:45
1,770m
1,770m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(3)
23
riders
20.8km
01:29
710m
710m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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4.8
(13)
1,584
riders
97.2km
06:08
2,580m
2,580m
This difficult 60.4-mile road cycling loop tackles the iconic Col de la Colombière and Col des Aravis in the French Alps.
4.5
(8)
692
riders
85.5km
05:10
2,110m
2,110m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
4.5
(11)
402
riders
55.4km
04:01
2,000m
2,000m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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In some places very beautiful views of Mont Blanc.
4
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
D109, beautiful descent to Ugine
2
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
These final kilometers are steeper and more challenging than all the previous kilometers on the climb. At the top, you'll have a beautiful view.
0
0
There are over 50 road cycling routes in the Réserve Biologique Intégrale De Merdassiers Nant Pareux region. These routes offer a diverse range of experiences, from challenging mountain passes to scenic valley rides.
The region offers a variety of difficulty levels. You'll find 8 easy routes, 26 moderate routes, and 20 difficult routes. Many routes feature significant elevation gains, especially those ascending mountain passes like the Col de l'Arpettaz.
Road cycling around the Réserve Biologique Intégrale De Merdassiers Nant Pareux offers dramatic and diverse landscapes. You can expect to cycle through rich forest ecosystems, ascend towards prominent mountain peaks, traverse picturesque alpine meadows, and enjoy breathtaking panoramic views, often including the majestic Mont Blanc massif and the Aravis chain.
The Réserve Biologique Intégrale De Merdassiers Nant Pareux is a strictly protected area designed for ecological preservation. While the reserve itself is not intended for recreational activities like road cycling, the surrounding region, particularly the roads offering views of and around the reserve, provides exceptional opportunities for road cycling. Cyclists should always adhere to local road rules and respect protected natural areas.
The best time for road cycling in this alpine region is typically from late spring through early autumn. During summer, the weather is generally favorable, and you can enjoy the full beauty of the alpine meadows and forests. Winter conditions can make many high-altitude routes impassable due to snow and ice.
Yes, many routes in the region are designed as loops, allowing you to start and finish in the same location. An example is the challenging Col de la Colombière and Col des Aravis Loop, which covers nearly 100 km with significant elevation gain.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 200 reviews. Cyclists frequently praise the challenging mountain passes, the stunning panoramic views of Mont Blanc and the Aravis range, and the diverse terrain that includes both shaded forests and open alpine meadows.
Yes, the region is known for its challenging mountain passes, some of which have been featured in the Tour de France. The Col de l'Arpettaz, for instance, is a significant and rewarding climb in the area, offering a taste of professional cycling challenges.
Absolutely. The region is renowned for its difficult routes with substantial elevation gains. For instance, the Col des Saisies – Flumet loop from Saint-Nicolas-la-Chapelle is a difficult 53.9 km route with over 1700m of ascent, providing a significant test for experienced riders.
While many routes are challenging, there are also easier options. For example, the Crest-Voland Village Center – Flumet loop from Saint-Nicolas-la-Chapelle is a moderate 20.8 km trail that leads through scenic valley roads, offering a less demanding experience compared to the high mountain passes.
Key climbs include the Col de l'Arpettaz, known for its challenging ascent and panoramic views, and the Col de la Croix Fry. The Col de la Croix Fry – Ascent of the Croix Fry pass loop from Parchet is a popular route featuring winding roads and significant elevation gain.
Many routes offer spectacular views. The ascent to Col de l'Arpettaz is particularly noted for magnificent views of the Mont Blanc massif. Additionally, the 'Route de la Soif,' a balcony route connecting Col des Aravis to Col de l'Arpettaz, is celebrated for its breathtaking vistas of the Mont Blanc range.


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