5.0
(2)
42
riders
6
rides
No traffic gravel bike trails around Seira traverse a mountainous landscape characterized by significant elevation changes and scenic valleys. The region features routes that wind through high-altitude terrain, offering views of reservoirs and surrounding peaks. Gravel biking in Seira involves challenging climbs and descents across varied surfaces, typical of a mountain environment. This area provides a robust setting for experienced gravel bikers seeking demanding routes.
Last updated: July 15, 2026
13
riders
52.9km
04:20
1,450m
1,450m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
10
riders
27.2km
02:13
890m
890m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5
riders
29.9km
02:58
980m
980m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
91.2km
08:31
2,710m
2,710m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
32.7km
03:27
1,230m
1,230m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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An oasis of civilization high in the mountains
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A legendary mountain pass in the Pyrenees. A crossing point between the Chistau and Benasque valleys, linking Sobrarbe and Ribagorza at an altitude of 2000m.
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Here you can still fill your water bottles
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Although perhaps the most notable is its Romanesque parish church, expanded in the 16th century, the entire town is worth a walk through its steep streets flanked by houses with thick stone walls and slate roofs.
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Access is via forest tracks in good condition. Obviously, to reach 2000m it takes a little time but the reward is worth it: the views are magnificent over the valleys and peaks at 360 degrees. A delight !
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4x4 track in very good condition. The climb is long and fairly regular. The views change as you progress and motivate you to continue to the pass which offers a magnificent spectacle.
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Castejón de Sos is a fairly large Ribagorza municipality, compared to the small population centers that exist in the surroundings. It has hotels, supermarkets, restaurants and a pharmacy. It is very close to the Ventamillo Gorge, an imposing canyon crossed by the Ésera River.
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There are 5 dedicated no-traffic gravel bike trails around Seira featured in this guide. These routes are designed to offer quiet and scenic rides away from vehicular traffic.
The trails listed in this guide are generally rated as difficult due to significant elevation gains and distances. For example, the Linsoles Reservoir – Linsoles Reservoir loop from Eriste covers nearly 53 km with over 1400 meters of climbing. Riders should have a good level of fitness and experience with gravel terrain.
The region, similar to the broader Sierra Nevada, features varied terrain including dirt roads, some technical sections, and potentially old, partially paved roads. You can expect significant elevation changes, offering a challenging and rewarding experience through mountainous landscapes.
Yes, all the routes in this guide are circular, allowing you to start and end your ride in the same location. For instance, the Best views of the Benasque Valley – Collado de Sahún loop from Chía is a great option for a loop ride.
Many routes offer stunning views of the surrounding peaks and valleys. You can find highlights like Collado de Sahún, which provides panoramic vistas, or pass by significant summits such as Piedras Blancas. The View of Plan – San Juan de Plan loop from Plan is specifically named for its scenic outlooks.
The komoot community highly rates the trails around Seira, with an average score of 5.0 stars. Riders often praise the challenging climbs, the rewarding descents, and the solitude of these traffic-free routes through the stunning mountain scenery.
Yes, several routes incorporate or offer views of prominent mountain passes. The Best views of the Benasque Valley – Collado de Sahún loop from Chía takes you to Collado de Sahún, and the Castejón de Sos – Coll de Fadas loop from Castejón de Sos includes Coll de Fadas.
The longest no-traffic gravel bike trail featured is the Linsoles Reservoir – Linsoles Reservoir loop from Eriste, which spans approximately 53 kilometers with over 1400 meters of elevation gain.
The shortest no-traffic gravel bike trail in this selection is the Best views of the Benasque Valley – Collado de Sahún loop from Chía, covering about 27 kilometers with nearly 900 meters of climbing.
While the focus is on natural beauty, the region does have historical elements. For example, you might encounter an Ermita de Santa Margarita, a religious building, near some of the routes, offering a glimpse into the local heritage.
Given the 'difficult' rating of all routes and significant elevation changes, ensure you are well-prepared with appropriate gear, sufficient water, and snacks. The mountainous environment means weather can change quickly, so check forecasts and dress in layers. Always inform someone of your route and expected return time.


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