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France
Occitania
Saint-Girons

Biert

The best gravel rides around Biert

4.5

(20)

160

riders

16

rides

Gravel biking around Biert offers routes that utilize former railway lines, now converted into greenways, providing varied terrain for cyclists. The region features a network of paths that often include historical infrastructure like old tunnels and bridges. These routes traverse landscapes that combine open sections with areas of more dense vegetation, characteristic of the Ariège department. The terrain is generally suitable for gravel bikes, with options ranging from moderate to more challenging ascents.

Best gravel bike trails around Biert

  • The…

Last updated: November 4, 2026

4.8

(8)

80

riders

#1.

The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop from Castelnau-Durban

84.8km

04:37

700m

700m

Hard gravel ride. Very good fitness required. Mostly paved surfaces.

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Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces.

Hard

Moderate gravel ride. Good fitness required. Mostly paved surfaces.

Moderate

Moderate gravel ride. Good fitness required. Mostly paved surfaces.

Moderate
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Popular around Biert

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Tips from the Community

Barbara & Andreas 🕊️
September 25, 2026, Piste cyclable du tracé ferroviaire près de Foix

Beginning or end of the railway cycle path „Voie Verte“ St. Girons - Foix or vice versa. A short section also serves to continue to (or from) Palmier. The Foix - Pamier route is neither signposted nor developed. But it can be easily ridden on small side roads.

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At the school, there is a tap on an outbuilding. When heading towards Foix, this is the last tap directly on the cycle path that we noticed. It makes sense to refill your supplies here.

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http://www.abbayedecombelongue.fr/2_jardins.html

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Trailhoulet du Vernajoul 10.5 kms

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A magnificent spot with the road winding under the rock, running alongside a partially underground stream. It's both breathtaking and peaceful. Plus, there's a starting point for a short walk; I did the beginning and it was lovely: I'd love to come back and do a longer section!

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Bettina
June 23, 2025, Foix

A very beautiful little town with a certain charm. If you're in the area, you should definitely stop by.

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Old little station that reminds us of another time!

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This is the longest tunnel on the greenway: it's super fun to go through. Be careful: it's a bit chilly!

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Frequently Asked Questions

What kind of terrain can I expect on gravel bike trails around Biert?

The gravel bike trails around Biert primarily utilize former railway lines, which have been converted into greenways. You'll encounter varied terrain, often featuring historical infrastructure like old tunnels and bridges. The routes traverse landscapes combining open sections with areas of denser vegetation, characteristic of the Ariège department.

Are there any easy gravel bike trails suitable for beginners in Biert?

While many routes in Biert are rated difficult, there are options for moderate skill levels. For example, the The tunnels of Véloroute 81 – Old Rimont Station loop from Castelnau-Durban is a moderate 32.5 km trail that takes about 2 hours 14 minutes, offering a good introduction to the region's greenways and historical points.

What are the typical distances for gravel bike routes near Biert?

Gravel bike routes in Biert vary significantly in length. You can find shorter, moderate loops like the Old metal bridge – Greenway of Montels loop from Castelnau-Durban at 32.2 km, up to extensive, challenging rides such as the Foix–Saint-Girons Greenway – Foix loop from Rimont, which covers 141.2 km.

Are there any circular gravel bike routes in the Biert area?

Yes, many of the gravel bike routes around Biert are designed as loops. Examples include the popular The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop from Castelnau-Durban, which is a 80.7 km circular trail exploring sections of the Véloroute 81, and the Old metal bridge – Vernajoul Viaduct Greenway loop from Sentenac-de-Sérou.

What interesting sights or landmarks can I see along the gravel bike trails in Biert?

The trails often incorporate historical elements. You can explore the tunnels of Véloroute 81 and ride along the Foix–Saint-Girons Greenway. Some routes also pass by points like the Old Rimont Station or offer views of structures like the Vernajoul Viaduct.

What do other gravel bikers enjoy most about the routes in Biert?

The gravel biking experience in Biert is highly rated by the komoot community, with an average score of 4.6 stars from over 17 reviews. Riders frequently praise the unique experience of cycling along former railway lines, the historical tunnels, and the varied landscapes of the Ariège department.

Are there any advanced or challenging gravel bike trails in Biert?

Yes, Biert offers several challenging routes for experienced gravel bikers. For instance, the Foix–Saint-Girons Greenway – Foix loop from Rimont is a difficult 141.2 km path with significant elevation gain, providing an extensive long-distance gravel experience.

How many gravel bike routes are available in the Biert region?

There are 9 gravel bike routes documented around Biert, offering a range of experiences from moderate to difficult. This network provides ample opportunities to explore the region's greenways and historical infrastructure.

What is the best season for gravel biking in Biert?

Given the region's characteristics with greenways and varied terrain, spring and autumn generally offer the most pleasant conditions for gravel biking in Biert, with milder temperatures and beautiful scenery. Summer can also be good, but it's advisable to start earlier to avoid the midday heat.

Are there any viewpoints or scenic spots along the gravel routes in Biert?

While specific viewpoints are not always marked, the routes often traverse open sections and elevated greenways, providing scenic vistas of the surrounding Ariège landscape. The historical bridges and viaducts themselves can offer picturesque spots.

Is public transport accessible near the gravel bike trails in Biert?

The region's gravel routes often follow former railway lines, which can sometimes align with current public transport hubs in nearby towns. For specific route access, it's recommended to check local bus or train schedules for towns like Foix or Saint-Girons, which are connected by the main greenways.

Where can I find parking for gravel bike trails in Biert?

Many gravel bike routes in Biert start from towns or villages like Castelnau-Durban or Rimont. These locations typically offer public parking facilities, especially near trailheads or town centers, making it convenient to access the greenways.

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