4.7
(37)
543
riders
25
rides
Gravel biking around Exilles offers routes through the dramatic Alpine landscapes of Italy's Susa Valley. The region features towering peaks, deep gorges, and rocky formations, providing varied terrain for exploration. Riders can traverse mixed white fir and spruce forests within Gran Bosco Natural Park and explore glacial lakes and ravines in Orsiera Rocciavrè Natural Park. This environment naturally provides the mixed surfaces and elevation changes characteristic of gravel biking.
Last updated: May 19, 2026
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.
5.0
(1)
34
riders
105km
09:20
3,460m
3,450m
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.
3
riders
60.0km
05:50
2,300m
2,300m
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.
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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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A fortress worth seeing, unfortunately very busy.
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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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An authentic and unmissable refuge where we stopped during our mountain bike crossing of the Assietta with my friend. Two incredible days filled with the beauty of the surroundings and exceptional autumn light. One night at 2500m altitude at the Casa Assietta refuge, where we were welcomed like royalty by Roberto! A good night's sleep under the covers after the host had prepared an excellent dinner for us! Thank you, Roberto!
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From Colle dell'Assietta, you climb 1.5 km of rougher dirt road to Gran Serin, and from there you descend towards the barracks. It's an incredible place, thinking about how these structures were built. The road down to Frais is particularly rough, and the gravel is very difficult to navigate, but the views over the valley are breathtaking (if it weren't for the highway viaducts that block the view at the bottom of the valley).
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There are over 20 dedicated no-traffic gravel bike trails around Exilles. These routes are generally categorized as difficult, offering challenging ascents and descents through the stunning Alpine landscape of the Susa Valley.
The terrain around Exilles is typically mountainous and varied, featuring mixed surfaces like gravel, loose earth, and stony paths. You'll encounter significant elevation changes, characteristic of Alpine gravel routes, as you traverse peaks, gorges, and forested areas.
While specific routes aren't solely dedicated to historical landmarks, many trails pass near significant sites. For instance, routes in the wider Susa Valley often offer views of the imposing Forte di Exilles, a major historical landmark. The medieval village of Exilles itself, with its cobblestone alleys, is a fascinating point of interest to explore before or after your ride.
The region is rich in natural beauty. You can expect to ride through areas near the Gran Bosco Natural Park, known for its unique mixed forests, and the Orsiera Rocciavrè Natural Park, which boasts glacial lakes, ravines, and diverse Alpine wildlife. The famous Strada dell'Assietta, a spectacular unsealed former military road, offers breathtaking high-altitude views.
The best time for gravel biking in Exilles is typically from late spring to early autumn (May to October). During these months, the weather is generally more stable, and the higher Alpine passes are more likely to be clear of snow, offering optimal conditions for exploring the challenging terrain and enjoying the 'no traffic' experience.
The gravel routes around Exilles are predominantly categorized as 'difficult' due to the significant elevation changes and mountainous terrain. While they offer a rewarding experience for experienced riders, those looking for easier or family-friendly options might need to seek out specific, shorter sections or less demanding paths within the broader Susa Valley that are not listed as full tours here.
Yes, several routes are designed as loops, allowing you to start and finish in the same location without retracing your steps. An example is the Blegier Pass – Strada dell'Assietta loop from Sauze d'Oulx, which offers a challenging circular journey through the Alpine landscape.
The komoot community highly rates the gravel biking experience in Exilles, with an average score of 4.6 stars. Reviewers often praise the challenging yet rewarding Alpine terrain, the stunning panoramic views, and the true sense of escape offered by the quiet, car-free routes through natural parks and historical areas.
Yes, the region features several mountain huts and refuges that can serve as excellent rest stops. For example, the Assietta Refuge is located along some of the high-altitude routes, offering a place to refuel and enjoy the views.
Exilles is located in the Susa Valley, which is accessible by train. You can take a train to Exilles or nearby towns like Oulx or Bardonecchia. Many regional trains allow bikes, but it's advisable to check specific train operator policies and book bike spaces in advance, especially during peak season. From the train stations, you can often connect to the start points of various trails.
Given the mountainous nature of the Exilles region, the no-traffic gravel bike trails feature significant elevation gains. For instance, routes like the Colle dell'Assietta – Blegier Pass loop from Chiomonte can involve over 2300 meters of ascent, providing a substantial challenge for gravel riders.
For experienced gravel bikers seeking a significant challenge, routes that incorporate the Strada dell'Assietta and its surrounding passes are highly recommended. The Colle dell'Assietta – Strada dell'Assietta loop from Fraisse, for example, covers over 77 km with more than 2500 meters of elevation gain, offering a demanding and rewarding experience.


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