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France
Occitania
Saint-Girons

Ustou

The best gravel rides around Ustou

5.0

(3)

28

riders

5

rides

Gravel biking around Ustou offers routes through the mountainous terrain of the French Pyrenees, characterized by significant elevation changes and scenic passes. The region features a mix of forested sections, open mountain landscapes, and river valleys. These trails often include challenging climbs and descents, providing a demanding experience for gravel bikers.

Best gravel bike trails around Ustou

  • The most popular gravel bike trail is Col de Port – Lers Pass loop from Port de Lers, a 47.7 miles (76.7…

Last updated: July 4, 2026

5.0

(1)

18

riders

#1.

Col de Port – Lers Pass loop from Port de Lers

76.7km

05:46

1,890m

1,890m

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

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Popular around Ustou

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GR 10 – Explore the Ariège Pyrenees crossing the Pyrenees

Hiking Collection by

Luc Gesell

Tips from the Community

Siro Arias Valdés - Testadicorsa
June 29, 2026, Étang de Lers

A heavenly place to enjoy the Pyrenees in their full glory. Ideal for a family picnic in spring or summer. Also, as there is a bar - restaurant, it is ideal if you want to have a drink on the terrace.

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It is a MUST of the Pyrenees, without a doubt, that should be included in any route that crosses the Pyrenees from side to side. Any of its slopes 2 is spectacular and tough. The views from its summit are wonderful, feeling the wild side of the Pyrenees. Of course, once at the summit of this pass... you have to descend to the Étang de Lers and enjoy a quiet rest on the shores of the lake. It is a pass that has been part of the Tour de France route on several occasions, although always far from the finish line. The first professional rider to crest it in the lead was the unforgettable Marco Pantani in 1995.

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I can only speak about my experience descending it from the south side, the one that starts in the village of Biert. It's simply a great pass, with a very tough final section, very similar to its close brother Mur de Peguère. With hardly any traffic, it has the appeal that the road is very narrow and very winding, which helps mentally.

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cgdscc
June 14, 2026, Port de Lers

I liked the climb from the north side (from Massat), very scenic and alpine landscapes towards the end at the étang de Lers

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cgdscc
June 14, 2026, Col de Port

Nice steady and scenic climb to its summit. Good coffee at the arrival (with a view!)

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JRL
October 19, 2025, Col de Port

A lovely outing with beautiful weather, beautiful autumn colors, ideal temperatures for the climb, and the cherry on the top was the arrival at the Auberge des Sapinières, a very nice menu to regain strength. An outing to do again 😉👍🚴🚴‍♂️🚴

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not very hard, we did it with our 2 boys aged 10 and 13

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Bettina
June 23, 2025, Seix

Beautiful, small town in the central Pyrenees, has that certain something and is definitely worth a visit

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Frequently Asked Questions

How challenging are the gravel bike trails around Ustou?

The gravel bike routes around Ustou are primarily designed for experienced riders. All 5 available routes are rated as difficult, featuring significant elevation changes and mountainous terrain, making them best suited for those seeking a demanding experience.

Are there any beginner-friendly gravel bike routes in Ustou?

Currently, all 5 gravel bike routes available around Ustou are rated as difficult. They involve significant elevation changes and challenging terrain, so beginners might find them quite demanding.

What kind of terrain can I expect on the gravel bike trails in Ustou?

You can expect mountainous terrain characteristic of the French Pyrenees, with significant elevation changes. The trails feature a mix of forested sections, open mountain landscapes, and river valleys, often including challenging climbs and descents.

Are there many loop gravel bike routes in Ustou?

Yes, all the featured gravel bike routes around Ustou are loops. For example, you can explore the Col de Port – Lers Pass loop from Port de Lers or the Along the Salat – Ascent to Col de Pause loop from Ustou.

What are some notable mountain passes I can encounter on these routes?

The region is known for its mountain passes. You might encounter passes like Agnès Pass, Lers Pass, Col de Saraillé, Core Pass, and Latrape Pass, which are often part of the challenging routes.

What are some interesting places to see near the gravel bike trails?

Beyond the stunning landscapes, you can find notable peaks like Pica d'Estats and Montcalm Peak. There's also the Pinet Refuge, offering a place to rest in the mountains.

What do other gravel bikers enjoy the most about gravel biking in Ustou?

The komoot community highly rates the routes in Ustou, with an average score of 5.0 stars. Riders often praise the challenging mountain passes, panoramic views, and the varied terrain that defines the region's gravel biking experience.

Is Ustou a good destination for family-friendly gravel biking?

Given that all gravel bike routes in Ustou are rated as difficult and feature significant elevation changes, they may not be ideal for families with young children or those seeking very easy, flat rides. These trails are better suited for experienced riders.

What is the best time of year for gravel biking in Ustou?

The mountainous nature of Ustou means that late spring, summer, and early autumn generally offer the most favorable conditions for gravel biking. During these months, you'll typically find less snow and more stable weather, making the high mountain passes accessible.

Are there any long-distance gravel bike routes in Ustou?

Yes, Ustou offers several longer routes for endurance riders. The Col de Port – The tunnels of Véloroute 81 loop from Biert is a particularly long option, covering approximately 77.6 miles (125 km).

Are there options for parking near the gravel bike trails?

While specific parking details vary by trailhead, routes often start from villages or accessible points like Port de Lers or Seix, where parking is generally available. It's advisable to check the specific route details on komoot for precise starting points and parking information.

Can I access gravel bike routes in Ustou using public transport?

Ustou is located in a mountainous, somewhat remote area of the French Pyrenees. Public transport options directly to trailheads might be limited. It's recommended to research local bus services or consider driving to access the starting points of the gravel routes.

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