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France
Auvergne Rhône Alpes
Grenoble

Marnans

The best MTB trails around Marnans

4.4

(70)

311

riders

60

rides

Mountain bike trails around Marnans traverse a landscape characterized by rolling hills and agricultural lands, typical of the Isère department in France. The region features a mix of open countryside, interspersed with woodlands and small water bodies like the Étang de Dionay. Mountain bikers can expect routes that navigate through rural settings, offering a blend of natural paths and quiet country roads.

Best mountain bike trails around Marnans

  • The most popular mountain bike trail is Great foresight loop from Saint-Siméon-de-Bressieux

Last updated: June 17, 2026

4.8

(5)

66

riders

#1.

Great foresight – Bressieux Silk Mill loop from Saint-Siméon-de-Bressieux

45.3km

04:02

750m

750m

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

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Moderate

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

Hard
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Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

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
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Tips from the Community

GravelHit3️⃣8️⃣
April 28, 2026, Soierie de Bressieux

Built by a silk industrialist from Lyon in the second half of the 19th century, the Saint-Siméon-de-Bressieux factory comprises two parts connected by a glass roof. Adjacent to the factory, a large pisé building housed the accommodation for the workers who, coming from afar, lodged on site during the week. This silk mill, established in a rural setting, provided work for nearly 1,000 employees. It operated until 1934. https://www.alpes-isere.com/itineraire/de-soieries-en-chateaux-5335632/ https://patrimoine.auvergnerhonealpes.fr/dossier/IA38000981

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JuJu
October 22, 2023, Château de Bressieux

Magnificent 360 degree view from the castle keep!

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Giada Affaticati
August 29, 2023, Etangs

Near the village of Roybon there is a series of landscaped ponds where it is possible to fish all year round.

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The Romanesque church of Saint-Pierre-de-Marnans, in Marnans, dates from the 12th century and is a major building of Romanesque art in Dauphiné. It is listed as a Historic Monument and every year hosts artists during the “Lesétés de Marnans” festival.

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Built by a silk industrialist from Lyon in the second half of the 19th century, the Saint-Siméon-de-Bressieux factory has two parts linked together by a glass roof. Adjoining the factory, a large adobe building housed workers who, coming from very far away, stayed on site during the week.

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The ruins of the feudal castle of Bressieux were classified as Historic Monuments in 1904. Many artists were inspired by it, the most famous of which was Jongkind who produced a watercolor in 1879 which is currently in the Louvre.

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An orientation table that allows you to have a nice panorama.

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Kevin
February 24, 2023, Col de Toutes Aures

There is a small cafe, a free water point and a small picnic area in the sun.

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Frequently Asked Questions

How many mountain bike trails are available around Marnans?

There are over 50 mountain bike trails around Marnans, offering a diverse range of options for different skill levels. You'll find routes traversing rolling hills, agricultural lands, and woodlands.

What kind of landscape can I expect when mountain biking in Marnans?

Mountain biking in Marnans takes you through a landscape characterized by rolling hills and agricultural lands, typical of the Isère department in France. You'll experience a mix of open countryside, interspersed with woodlands and small water bodies like the Étang de Dionay.

Are there mountain bike trails suitable for beginners in Marnans?

Yes, Marnans offers several easy mountain bike trails perfect for beginners or those looking for a relaxed ride. One such route is the Statue of Liberty in Roybon – Statue of Liberty loop from Roybon, which is 11.9 miles (19.1 km) long and features moderate elevation changes.

Are there challenging mountain bike trails for experienced riders in Marnans?

Absolutely. For experienced mountain bikers seeking a challenge, Marnans has several difficult routes. The Château des Ayes – Col de Toutes Aures loop from Saint-Siméon-de-Bressieux is a demanding 26.0 miles (41.9 km) trail with significant elevation gain, offering a rewarding experience.

Are there circular mountain bike routes in Marnans?

Many of the mountain bike trails in Marnans are circular, allowing you to start and finish at the same point. A popular example is the Étang de Dionay – Statue of Liberty loop from Roybon, a 22.7 miles (36.5 km) route that explores rural landscapes and passes by the Étang de Dionay.

What do other mountain bikers enjoy most about the trails in Marnans?

The trails in Marnans are highly rated by the komoot community, with an average score of 4.5 stars from over 70 reviews. Riders often praise the varied terrain, the blend of natural paths and quiet country roads, and the scenic views of the rolling countryside.

What interesting landmarks or attractions can I see along the mountain bike trails?

While riding, you can encounter several interesting points. The Étang de Dionay – Statue of Liberty loop from Roybon passes by the Étang de Dionay. You might also find yourself near historical sites like the Château de Bressieux or various mountain passes such as the Col de la Madeleine (Chambarans).

Are there any mountain passes accessible by bike in the Marnans area?

Yes, the region around Marnans features several mountain passes that can be incorporated into your rides. Notable passes include the Col de la Madeleine (Chambarans), Toutes Aures Pass, and Lachard Pass (695 m), offering scenic views and challenging climbs.

What is the best time of year for mountain biking in Marnans?

Marnans, being in the Isère department of France, generally offers pleasant conditions for mountain biking from spring through autumn. The mild temperatures and vibrant landscapes during these seasons make for an enjoyable riding experience. Always check local weather conditions before heading out.

Are there any routes that offer significant elevation gain?

Yes, many routes in Marnans feature notable elevation changes. For instance, the Great foresight loop from Saint-Siméon-de-Bressieux includes over 740 meters of ascent, providing a good workout and panoramic views of the local countryside.

Can I find routes that combine natural paths with quiet country roads?

The mountain bike network around Marnans is characterized by a blend of natural paths and quiet country roads. This mix allows for varied riding experiences, from technical sections to more relaxed stretches through agricultural fields and woodlands.

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