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France
Ile-de-France
Palaiseau

Briis-Sous-Forges

The best MTB trails around Briis-Sous-Forges

4.5

(450)

2,221

riders

16

rides

Mountain bike trails around Briis-Sous-Forges traverse a varied landscape within the Hurepoix region, characterized by significant elevation changes and diverse natural features. The area features extensive woodlands like the Bois de Croulard and Bois de la Garenne, offering numerous marked trails. Valleys and hills provide scenic backdrops for rides, with altitudes ranging from 87m to 173m, creating dynamic terrain for mountain biking.

Best mountain bike trails around Briis-Sous-Forges

  • The most popular mountain bike trail is Lac d'Olainville – Orge Riverbank…

Last updated: June 29, 2026

4.2

(14)

57

riders

#1.

Lac d'Olainville – Orge Riverbank Snack Bar loop from Briis-sous-Forges

48.5km

03:13

280m

280m

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

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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. Advanced riding skills necessary.

Moderate

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

Moderate

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

Moderate
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Cycling around Briis-Sous-Forges

Tips from the Community

Jean Conquer 🇫🇷🇺🇸
September 3, 2024, Château de Forges-les-Bains

The castle of Forges-les-bains was built in the 17th century, before being remodeled in the 18th century by Edme Mathurin Le Jariel, squire of the king. Currently, some parts are dilapidated, others restored. It is the in-between.

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Church of Our Lady of the Assumption of Forges-les-bains. If you want more information, they have a website https://www.secteurlimours-catholique.fr/

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Hello everyone, be careful, several waypoints (notably 5) do not exist or no longer exist. I really struggle to follow this tour.

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Small fun single on the descent, but passable on the ascent

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Access for firefighters...

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Like many crossroads in the forest, there is a post but no indication...

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Typical of the Chevreuse valley

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Flo Ros
August 29, 2023, Chêne remarquable

Bucolic corner with this magnificent oak tree whose branches drop above a pond

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Frequently Asked Questions

How many mountain bike trails are available in Briis-Sous-Forges?

Briis-Sous-Forges offers a diverse selection of 19 mountain bike trails, catering to various skill levels. The region's varied landscape, with its woodlands and elevation changes, provides a rich environment for mountain biking.

Are there mountain bike trails suitable for beginners or families in Briis-Sous-Forges?

Yes, Briis-Sous-Forges has trails suitable for different abilities. There are 2 easy mountain bike trails, which can be a good starting point for beginners or families looking for a less challenging ride. The majority of trails are moderate, offering a balanced experience.

What kind of terrain can I expect on the mountain bike trails around Briis-Sous-Forges?

The terrain around Briis-Sous-Forges is characterized by dense woodlands, scenic valleys, and varied elevation changes. You'll encounter trails through extensive forests like the Bois de Croulard and Bois de la Garenne, with altitudes ranging from 87m to 173m, providing dynamic and engaging rides.

Are there any circular mountain bike routes in Briis-Sous-Forges?

Yes, many of the trails in Briis-Sous-Forges are circular, allowing you to start and end at the same point. For example, the Château de Forges-les-Bains – Sandpit loop from Briis-sous-Forges is a moderate 15.7-mile (25.3 km) circular route that takes you through varied landscapes.

What are some notable natural features or viewpoints I can see along the trails?

The region is rich in natural beauty. You can find scenic views along trails that pass through valleys, such as those near the Fauvettes Viaduct. The Golf de Marivaux – valley view loop from Briis-sous-Forges is specifically known for offering scenic views. The historic La Madeleine Castle also provides exceptional views over the Chevreuse valley.

Are there any lakes or ponds accessible by mountain bike in the area?

Yes, the area features several beautiful ponds and lakes. The Sandpit – Étang de la Baleine loop from Briis-sous-Forges is a moderate 19.1-mile (30.8 km) route that takes you past the Étang de la Baleine. Other notable water bodies include Lac d'Olainville and Trévoix Pond.

What do other mountain bikers enjoy most about the trails in Briis-Sous-Forges?

The mountain bike trails in Briis-Sous-Forges are highly rated by the komoot community, with an average score of 4.5 stars from over 400 reviews. Riders often praise the varied terrain, the extensive woodlands, and the dynamic elevation changes that make for engaging rides.

What is the typical duration for mountain bike rides in Briis-Sous-Forges?

Trail durations vary depending on the route and your pace. For instance, the Bullion Church – Étang de la Baleine loop from Briis-sous-Forges, a moderate 18.8-mile (30.2 km) path, typically takes around 2 hours 20 minutes. Longer routes, like the Lac d'Olainville – Orge Riverbank Snack Bar loop from Briis-sous-Forges (29.3 miles / 47.2 km), can take over 3 hours.

Are there any historical sites or castles to see while mountain biking?

Yes, the region has historical points of interest. While not directly on every trail, the La Madeleine Castle is a significant landmark offering exceptional views over the Chevreuse valley. You might also encounter other historical elements as you explore the countryside.

What is the best time of year to go mountain biking in Briis-Sous-Forges?

The verdant setting of Briis-Sous-Forges makes it enjoyable for mountain biking through much of the year. Spring and autumn offer pleasant temperatures and beautiful foliage, while summer provides longer daylight hours. The extensive woodlands also offer some shade during warmer months.

Are there any challenging climbs for experienced mountain bikers?

Yes, the region's varied altitudes and significant elevation changes provide opportunities for challenging climbs. The Milon-la-Chapelle Wall, located in the Chevreuse valley, is a notable steep climb spanning about 600 meters, presenting a significant challenge for cyclists seeking more advanced terrain.

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