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France
Occitania
Foix

Sem

The best MTB trails around Sem

4.7

(19)

175

riders

18

rides

Mountain bike trails around Sem offer a diverse landscape for riders, characterized by extensive trail networks within forests and natural preserves. The region features varied terrain, including singletrack paths with roots, switchbacks, and off-cambered sections. Riders can also encounter man-made elements like small drops and rollers, providing technical challenges. These trails often include moderate climbing and descending sections with short, steep pitches.

Best mountain bike trails around Sem

  • The most popular mountain bike trail is Pic de Risoul – Siguer loop from Val-de-Sos, a 23.5 miles (37.9 km) trail that takes 3 hours 37 minutes to complete. This difficult route features significant elevation gain through varied terrain.
  • Another top favourite among local mountain bikers is Siguer – Col de Grail Refuge loop from Siguer, a difficult 25.8 miles (41.6 km) path. This challenging route offers extensive climbs and descents through the region's natural landscapes.
  • Local mountain bikers also love the Lapégu Village – Lapège to Junac Downhill MTB loop from Val-de-Sos, a 12.9 miles (20.8 km) trail leading through forested areas, often completed in about 2 hours 4 minutes.
  • Mountain biking around Sem is defined by extensive trail networks, varied terrain with roots and switchbacks, and immersive forests and natural preserves. The network offers options for different ability levels, from moderate to difficult.
  • The routes in Sem are highly rated by the komoot community with an average score of 4.7 stars from over 19 reviews. More than 170 mountain bikers have used komoot to explore Sem's varied terrain.

Last updated: May 7, 2026

4.5

(2)

24

riders

#1.

Pic de Risoul – Siguer loop from Val-de-Sos

37.9km

03:38

1,170m

1,170m

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

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Hard

5.0

(1)

23

riders

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard
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Popular around Sem

GR 10 – Explore the Ariège Pyrenees crossing the Pyrenees

Road Cycling Routes around Sem

Hiking around Sem

Cycling around Sem

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GR 10 – Explore the Ariège Pyrenees crossing the Pyrenees

Hiking Collection by

Luc Gesell

Tips from the Community

Bruno
August 12, 2025, Descente depuis Lercoul

flow trail type descent, everything goes on the bike without danger

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Marco
June 2, 2025, Lapégu Village

Hike to do with a very good full suspension mountain bike or 🥾🎒

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superb view of the ridges and beautiful descent to Sem

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Not very technical, a few pins and no exposure

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Luc Gesell
September 3, 2023, Siguer

This small town in the Ariège Pyrenees regional natural park is at the crossroads of many hiking routes. The town and its hamlets are dynamic and offer many activities in summer, which makes them very pleasant to cross. If you want to spend the night there, you will find many accommodation options.

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Luc Gesell
September 3, 2023, Point de vue

Here you benefit from a pretty window to admire the peaks of the massif which rises on the other side of the valley. You will be able to see the peak of Boucarle or the rock of Querquéou.

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Luc Gesell
September 3, 2023, Pic de Risoul

By climbing to the peak of Risoul you can enjoy a magnificent view of the village of Vicdessos and its valley. Be attentive, the chamois like to hang around and observe hikers.

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This refuge is located in the privileged setting of ancient royal forests. It represents a comforting stopover for long-distance hikers. The refuge offers around fifteen beds and is equipped with five bathrooms, three toilets and a living room. It’s a very pleasant step.

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Frequently Asked Questions

What kind of terrain can I expect on mountain bike trails in Sem?

Mountain bike trails in Sem offer a diverse landscape, primarily within forests and natural preserves. You'll encounter varied terrain, including singletrack paths with roots, switchbacks, and off-cambered sections. Some routes also feature man-made elements like small drops and rollers, providing technical challenges. Expect moderate climbing and descending sections, often with short, steep pitches.

How many mountain bike trails are available in Sem?

There are 18 mountain bike trails around Sem, offering a range of experiences for different skill levels.

Are there any easy mountain bike trails in Sem for beginners?

While Sem is known for its more challenging routes, there are 5 moderate mountain bike trails available. These offer a good starting point for riders looking to build their skills before tackling the more difficult terrain.

What do other mountain bikers say about the trails in Sem?

The mountain bike trails in Sem are highly rated by the komoot community, with an average score of 4.7 stars from over 19 reviews. Riders often praise the extensive trail networks, varied terrain, and immersive forests and natural preserves.

Are there any circular mountain bike routes in Sem?

Yes, many routes in Sem are circular. For example, the Pic de Risoul – Siguer loop from Val-de-Sos is a popular difficult circular route covering 23.5 miles. Another option is the Siguer – Col de Grail Refuge loop from Siguer, a challenging 25.8-mile loop.

What are some of the longer mountain bike routes in Sem?

For longer rides, consider the Siguer – Col de Grail Refuge loop from Siguer, which is 25.8 miles (41.6 km) long. Another extensive option is the Col de Grail Refuge – Viewpoint loop from Val-de-Sos, spanning 25.5 miles (41 km).

Are there any specific mountain bike trails suitable for advanced riders in Sem?

Sem offers 13 difficult mountain bike trails for advanced riders. A challenging option is the Col de Grail Refuge – Pic de Risoul loop from Val-de-Sos, which features significant elevation gain over 17.7 miles (28.5 km).

What kind of natural features or landmarks can I see along the mountain bike trails in Sem?

While riding in Sem, you can encounter various natural features and landmarks. These include mountain peaks like Saleix Pass and Three Lords' Peak. You might also pass by huts and refuges such as Étang Fourcat and Refuge de l'Étang Fourcat, or the Orri of La Coume Izourt.

Are there any routes with downhill sections in Sem?

Yes, some routes incorporate downhill sections. The Lapégu Village – Lapège to Junac Downhill MTB loop from Val-de-Sos is a moderate 12.9-mile trail specifically designed with downhill mountain biking in mind, leading through forested areas.

What is the typical duration for mountain bike rides in Sem?

Ride durations vary depending on the trail's length and difficulty. For instance, the moderate Lapégu Village – Lapège to Junac Downhill MTB loop from Val-de-Sos typically takes about 2 hours 4 minutes, while more difficult and longer routes like the Pic de Risoul – Siguer loop from Val-de-Sos can take around 3 hours 37 minutes.

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