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Brittany
Guingamp

Treffrin

The best MTB trails around Treffrin

4.3

(39)

233

riders

37

rides

Mountain biking around Treffrin offers diverse terrain within the Côtes-d'Armor department of Brittany. The region features a charming bocager landscape, characterized by hedged farmland, alongside numerous woodlands such as Forêt de Freau and Bois de Conveau. Riders can explore varied geological formations, including dirt roads, stone paths, and forest trails, with access to hills like Mont Noir and water bodies such as Etang du Coroncq. This combination provides a dynamic environment for mountain bikers seeking natural exploration.

Best mountain bike…

Last updated: May 7, 2026

5.0

(2)

18

riders

#1.

The Glomel Cut – Kerdiston lake loop from Le Moustoir

54.6km

04:04

540m

540m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Tips from the Community

Francois VAN THIENEN
March 9, 2025, Entrée sur la Voie verte Roscoff - Concarneau

very pleasant

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Peter
October 17, 2024, La tranchée de Glomel

This is one of the very few straight sections of the canal.

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Here the canal meanders through the landscape.

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Yes - a very beautiful lock keeper's house. We were able to take a relaxing break here! Someone has invested a lot of love and time here and turned it into a gem. 💎

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Beautiful lock and vintage car

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A welcome breath of fresh air

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At an altitude of 184 m, the Glomel trench is the highest point of the Nantes-Brest canal and the watershed between the Blavet and Aulne basins. The canal project and its passage through the center of Brittany dates back to Vauban, the decision and the route to Napoleon. The impressive trench allows the Aulne and Blavet watersheds to communicate via the canal. The Grande Trenche of the Canal from Nantes to Brest was dug in the 19th century by deserters from the army of Louis XVIII. The 4000 convicts of Glomel had to move as much earth and rock as was necessary for the construction of a great pyramid in Egypt. It took 9 years to create this trench, more than 3 kilometers long, 100 meters wide and 23 meters deep.

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Carhaix-Plouguer (/kaʁɛ pluɡɛʁ/Note 1), commonly called Carhaix, is known to be one of the most flourishing cities of Gallo-Roman Armorica during Antiquity, then bearing the name Vorgium (Latin name of the capital of the Gallic and then Gallo-Roman people of the Osismes). It is today known for hosting, since 1992, the Vieilles Charrues festival, one of the main music festivals in Europe.

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Frequently Asked Questions

How many mountain bike trails are available around Treffrin?

There are over 30 mountain bike trails around Treffrin, offering a diverse range of experiences. These include 6 easy routes, 28 moderate routes, and 1 difficult route, catering to various skill levels.

What kind of terrain can I expect on mountain bike trails near Treffrin?

The terrain around Treffrin is quite varied, reflecting Brittany's diverse geological formations. You'll encounter charming bocager landscapes (hedged farmland), dense woodlands like Forêt de Freau and Bois de Conveau, and varied hills such as Mont Noir. Expect a mix of dirt roads, stone paths, and forest trails, providing a dynamic environment for mountain biking.

Are there any family-friendly mountain bike trails in the Treffrin area?

Yes, Treffrin offers several family-friendly options. There are 6 easy mountain bike routes available, perfect for those looking for a more relaxed ride. These trails often pass through the region's pleasant bocager landscapes and woodlands, providing a gentle introduction to mountain biking in Brittany.

Are there any circular mountain bike routes around Treffrin?

Yes, many of the routes around Treffrin are circular. For example, the The Glomel Cut – Kerdiston lake loop from Le Moustoir is a popular moderate 54.6 km loop, and the Place de la Tour d'Auvergne – Minez Gliguéric loop from Carhaix offers a 41.3 km circular ride through rural Brittany countryside.

What natural features or landmarks can I see along the mountain bike trails?

The trails around Treffrin offer views of various natural features and landmarks. You might encounter water bodies like Etang du Coroncq and the larger Lac de Guerlédan, as well as dense forests. Notable landmarks include The Glomel Cut and the Valley of the Saints, which are accessible from some routes.

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

The mountain bike trails around Treffrin are highly rated by the komoot community, with an average score of 4.3 stars from over 30 reviews. Riders often praise the varied terrain, the quiet woodlands, and the opportunity to explore Brittany's unique bocager landscapes.

Are there any challenging mountain bike routes for experienced riders?

While most routes are moderate, there is 1 difficult mountain bike route available for experienced riders seeking a greater challenge. The region's varied hills, such as Mont Noir, and the more rugged sections of the Monts d'Arrée further afield, can provide more demanding terrain.

Can I find mountain bike routes that follow canals or rivers?

Yes, you can. The Carhaix-Plouguer – Nantes to Brest Canal loop from Carhaix is a popular moderate route that follows sections of the historic Nantes to Brest Canal, offering a scenic ride along the water.

What is the best time of year to go mountain biking in Treffrin?

Brittany generally features shaded, fresh forest landscapes, making mountain biking enjoyable across many seasons. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer provides shaded trails in the numerous forests, while winter can still be ridden, though conditions may vary.

Are there any long-distance mountain bike routes available?

Yes, there are several longer routes for those looking for extended rides. For instance, the Carhaix-Plouguer – Nantes to Brest Canal loop from Carhaix is a substantial 56.9 km route, and The Glomel Cut – Kerdiston lake loop from Le Moustoir covers 54.6 km, both offering significant distances.

What kind of natural parks are accessible from Treffrin for mountain biking?

Treffrin is an excellent base for accessing the Armorique Regional Natural Park, which is known for its moorlands, forests, and sunken lanes. This park provides a vast playground for mountain bikers seeking diverse natural environments. You can find more information about regional natural parks in Brittany on the Brittany Tourism website.

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