4.7
(63)
1,101
riders
30
rides
No traffic gravel bike trails around Parco Naturale del Gran Bosco di Salbertrand traverse a diverse alpine landscape, ranging from 1,000 to 2,700 meters above sea level. The region features extensive forests of silver fir, Norway spruce, larch, and stone pine, alongside high-altitude pastures and grasslands. Situated in the Susa Valley, the park's mountainous terrain includes a network of dirt roads closed to motorized traffic, providing a dedicated environment for gravel biking. This area offers varied gradients and views, making…
Last updated: May 16, 2026
7
riders
32.5km
03:06
1,060m
1,060m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.3
(4)
53
riders
38.3km
03:38
1,350m
1,350m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(4)
39
riders
38.9km
03:11
910m
910m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
70.5km
06:15
2,170m
2,170m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
15.9km
01:33
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Parco Naturale del Gran Bosco di Salbertrand
Located at the beginning of the long climb to Monfol, this evocative place, recently restored, was the ancestor of the refrigerator! Taking advantage of the winter frost, teams of men in the middle of winter extracted ice from the lake, to then store the blocks in the icehouse below, which was nothing more than an underground structure, insulated from the outside by a thick layer of earth with insulating properties, and capable of keeping the ice during the summer months.
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The fortification was erected between 1885 and 1894, with the aim of monitoring the outlet of the Frejus railway tunnel in anticipation of a possible French attack. During the First World War, its artillery was requisitioned and moved to the Austro-Hungarian front, while on the eve of the Second World War, it was incorporated into the fortified system of the Alpine Wall. It was then requisitioned by the Germans and completely dismantled after the end of hostilities. It remained abandoned for a long time, until, starting in 1995, a recovery project was initiated, still partly ongoing, equipping the structure with a museum and a guided tour. The road that reaches it from the valley floor is yet another demonstration of the construction skills of military engineering: the dirt road gains altitude with gentle hairpin bends, bordered by dry stone walls that are still perfectly in place. Near Grange Bersac, it passes a charming little church, shortly after the route leaves the woods and ends in wide meadows near another beautiful little church, dedicated to St. Anne. From here, the dirt road splits: straight ahead leads to Pian del Sole and the Bardonecchia MTB circuit, while climbing towards Colomion, turning right, a final short climb reaches the fort. The view of Guglia Rossa and the Re Magi (Three Wise Men) group, which dominate the Bardonecchia basin, is magnificent.
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one of the many hills along the military road
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Although the flag parade seen in some of the photos (which various users have uploaded to the highlight) could theoretically fit into a memorial for the victims of the two world wars – who came from many different nationalities – they do not belong in any context with the “Monumento ai caduti”.
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Spectacular setting at high altitude to do at least once
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Sportinia is always beautiful. Reached by a hike starting from the experimental center and passing through Pian della Rocca, on August 31st we found the Rocce Nere refuge open, where we enjoyed a platter and a beer.
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Fantastic place for families
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Excellent refuge with catering offers
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There are over 20 dedicated no-traffic gravel bike trails in Parco Naturale del Gran Bosco di Salbertrand. These routes offer a fantastic opportunity to explore the diverse landscapes of the park without motorized vehicle interference, as all dirt roads within the park are closed to traffic.
The gravel bike trails in Parco Naturale del Gran Bosco di Salbertrand are generally considered challenging. All 24 routes listed in this guide are rated as 'difficult', featuring significant elevation gains and varied terrain. For example, the Blegier Pass – Strada dell'Assietta loop from Sauze d'Oulx involves over 1350 meters of ascent.
The routes traverse diverse forests, from silver fir and Norway spruce to larch and stone pine at higher elevations. You'll encounter mountainous terrain and open vistas from high-altitude pastures. A prominent landmark is the Strada dell'Assietta and Colle dell'Assietta (2472 m), a historic military road offering panoramic views. Other notable points include the Blegier Pass and the Fort Gran Serin.
Yes, many of the gravel bike routes in Parco Naturale del Gran Bosco di Salbertrand are circular, allowing you to start and end in the same location. An example is the Icehouse Lake and Ice House – Daniele Arlaud Mountain Hut loop from Salbertrand, which covers over 32 km.
The best time for gravel biking is typically from late spring to early autumn (May to October). During these months, the weather is generally more stable, and the higher-altitude routes, including the famous Strada dell'Assietta, are usually free of snow. Always check local conditions before heading out, especially in early spring or late autumn.
Yes, the park offers reception points that can serve as breaks or overnight stays for longer rides. The Assietta Refuge is one such option, located along the iconic Strada dell'Assietta. The Daniele Arlaud refuge (1771 m) is another possibility for cyclists.
The komoot community highly rates the gravel biking experience in this region, with an average score of 4.6 out of 5 stars from over 60 reviews. Riders often praise the extensive network of traffic-free dirt roads, the challenging yet rewarding climbs, and the stunning alpine scenery, particularly along the Strada dell'Assietta.
For experienced riders seeking a significant challenge, the Col Basset – Col Basset (Sestriere) loop from Sauze d'Oulx stands out. This route spans over 70 km and features an impressive 2173 meters of elevation gain, making it one of the most demanding options in the area.
Absolutely. The park is rich in history, with routes that cross internationally significant paths like the Via Alpina and the Via Francigena. The Fort Gran Serin is a historical site you can encounter, and the Strada dell'Assietta itself is a historic military road, offering a blend of physical activity and cultural discovery.
Parco Naturale del Gran Bosco di Salbertrand is home to diverse wildlife. Cyclists might spot chamois, wild boar, deer, roe deer, and marmots. The park also hosts over 80 species of nesting birds, including golden eagles, adding to the immersive natural experience.
While many routes are challenging and long, there are options for shorter rides. The Sportinia – Trail "Tippy's Witch" loop from Sauze d'Oulx is a good example, covering just under 16 km with over 600 meters of elevation gain, offering a taste of the region's gravel biking in a more condensed format.


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