4.0
(3)
92
riders
4
rides
Gravel biking around Cazaux-Debat offers routes through the Hautes-Pyrénées, a region characterized by its mountainous terrain and diverse landscapes. Situated at an altitude of 800 meters, the area features challenging mountain passes, scenic valleys like the Louron Valley, and extensive forest scenery. The terrain includes both paved and unpaved segments, providing varied experiences for gravel riders. This region is defined by its Pyrenean landscapes and diverse terrain.
Last updated: July 6, 2026
5.0
(1)
12
riders
66.9km
05:25
1,730m
1,730m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
18
riders
70.6km
05:26
1,760m
1,760m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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43
riders
80.7km
06:20
2,240m
2,240m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(2)
7
riders
13.0km
00:54
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
12
riders
108km
09:07
3,690m
3,690m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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I ride this pass once a month by mountain bike since November 2025, this pass is closed to cars because of the snow but what a chance to see deer and does running in the snow. 😉
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Pleasant and legendary climb used by the Tour de France
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Pleasant and legendary climb used by the Tour de France
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Here begins the official start of the climb to the Hourquette d'Ancizan, made in 2024 on the Tour de France. On the program, eight kilometers at an average of 5%.
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A beautiful lake, the tour is easy to do!
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A superb panorama indeed!
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This guide features 5 gravel bike trails around Cazaux-Debat, all offering unique experiences in the Pyrenean landscape. These routes are generally considered difficult, providing a good challenge for experienced riders.
The terrain around Cazaux-Debat is diverse, featuring challenging mountain passes like Col d'Aspin and Hourquette d'Ancizan, scenic valleys such as the Louron Valley, and extensive forest scenery. You'll encounter a mix of paved and unpaved segments, with some sections featuring steep gradients and loose gravel, particularly on passes like Col de Liar.
While most routes in this guide are rated as difficult, there is one easy option: the Panorama vers Loudervielle – Lake Génos loop from Génos. This 13.1 km trail offers a more gentle experience with less elevation gain, making it suitable for those looking for a less challenging ride.
Many routes offer spectacular views of the Pyrenees. You can expect panoramic vistas from mountain passes like Col d'Aspin, Hourquette d'Ancizan, and Port de Balès. The Louron Valley itself is characterized by traditional stone houses and historic washhouses, offering cultural points of interest.
Yes, several routes in this guide are circular. For instance, the Hourquette d'Ancizan – Col d'Aspin loop from Vignec, the Col d'Aspin – Hourquette d'Ancizan loop from Cadeilhan-Trachère, and the Col d'Aspin – Hourquette d'Ancizan loop from Cadéac are all excellent loop options, allowing you to start and finish in the same location.
The Pyrenean region around Cazaux-Debat is best for gravel biking from late spring through early autumn (May to October). During these months, the weather is generally more stable, and mountain passes are clear of snow. Always check local weather conditions and pass openings before you set out, especially in shoulder seasons.
The gravel bike trails around Cazaux-Debat are highly rated by the komoot community, with an average score of 4.5 stars from over 8 reviews. Riders frequently praise the challenging climbs, expansive Pyrenean views, and the diverse mix of paved and unpaved sections that provide a true gravel experience.
Yes, the area around Hourquette d'Ancizan is particularly known for its beautiful forest scenery, providing serene and often shaded sections. Routes that incorporate this pass, such as the Hourquette d'Ancizan – Col d'Aspin loop from Vignec, will offer a good mix of open mountain views and forested paths.
Absolutely. The region is known for its demanding mountain passes. The Hourquette d'Ancizan – Col d'Aspin loop from Vignec, at 112.7 km with over 3400 meters of elevation gain, is a significant challenge. The Col de Liar, while not explicitly part of these routes, is a local 'hidden gem' known for its 31 switchbacks and steep, loose gravel sections, offering a rewarding experience for seasoned gravel riders.
While specific cafes directly on every trail segment are not guaranteed, the routes often pass through or near villages in the valleys, such as those in the Louron Valley or near the starting points like Vignec, Cadeilhan-Trachère, or Cadéac. These villages typically offer opportunities for refreshments and supplies. It's always advisable to carry sufficient water and snacks, especially on longer rides.
The gravel routes in this guide vary significantly in length and elevation. Distances range from 13.1 km for easier rides to over 112 km for the most challenging loops. Elevation gains can be substantial, with difficult routes featuring climbs of over 3400 meters, reflecting the mountainous Pyrenean landscape.


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