4.2
(78)
337
riders
37
rides
Mountain bike trails around Brie traverse a gently rolling plateau, with elevations typically ranging between 100 and 200 meters. The region is characterized by extensive forests, including the Forêt de Sénart, Forêt de Crécy-la-Chapelle, and Forêt d'Armainvilliers, which provide varied terrain. River valleys, such as those of the Marne, Grand Morin, and Petit Morin, also contribute to the diverse landscape. This combination of features offers a range of mountain biking opportunities for different skill levels.
Last updated: June 18, 2026
4.7
(20)
51
riders
37.4km
03:25
510m
510m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
3.7
(3)
14
riders
31.2km
02:43
520m
520m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.0
(2)
5
riders
40.0km
03:13
530m
530m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.0
(1)
4
riders
37.1km
03:03
480m
480m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.2
(5)
5
riders
15.5km
01:02
190m
190m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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In the forest south of Saint-Nicolas-Aux-Bois, we encounter a small sacred monument, which, based on its intention, can be classified as a memorial cross. The metal cross located at the top of the monument, surrounded by trees, is comparatively small in relation to the towering, divided shaft. The base of the "Croix Sézinne" consists of two (three if you count the transition) stone elements: a square shaft at the bottom, a slightly projecting, tapered connecting piece in the middle section, and above it, a round shaft that supports the actual cross.
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In 1692, the Manufacture royale des Grandes Glaces was established in the abandoned castle of Saint-Gobain, which gave the later glass company Saint-Gobain its name. The factory developed and in 1986 it still supplied the glass for the pyramid of the Louvre. In 1993, it was announced that the factory would close and on 31 December 1995 the last activity of this historic establishment disappeared.
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The Grottes des Roches de l'Ermitage are natural and artificial caves dug by erosion in the limestone rock. You can explore the two largest caves, with a length of 21 m and 36 m respectively, or admire the impressive stack of blocks which forms a large shelter on the side of the valley. The site is also rich in history and legend, as it is said to be where the Irish monk Goban settled in the 7th century and performed many miraculous healings.
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The Croix Sézinne in Saint-Nicolas-Aux-Bois is a historic monument located in the Saint-Gobain forest, in the Aisne department, in France. This is a cross which commemorates a medieval conflict between the monks of the neighboring abbey and the local lords.
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The remains of the abbey of Saint-Nicolas aux Bois were founded in the 11th century by two hermits and had a turbulent history of wars, fires and reforms. It was suppressed during the French Revolution and sold as national property. Today you can see the remains of the tower, walls and buildings of the abbey, which are protected as historical monuments. The abbey is surrounded by woods and fields, offering a variety of trails for different levels of runners. You can explore the history and architecture of the abbey or enjoy the panoramic views of the countryside. The remains of the abbey of Saint-Nicolas aux Bois are an ideal destination for running.
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The Barisis Forest Road passes through the Barisis Forest. You can admire views of the lush forest and wildlife along the way. The trail is suitable for hiking and you can take your dog with you.
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The Grottes des Roches de l'Ermitage are natural and artificial caves dug by erosion in the limestone rock. You can explore the two largest caves, with a length of 21 m and 36 m respectively, or admire the impressive stack of blocks which forms a large shelter on the side of the valley. The site is also rich in history and legend, as it is said to be where the Irish monk Goban settled in the 7th century and performed many miraculous healings.
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The Croix Sézinne is a cross-shaped monument located in the Saint-Gobain forest, near the village of Saint-Nicolas-aux-Bois in France. It is a historical and cultural landmark which commemorates the death of three young Flemish lords captured and executed by the lord of Coucy in the 13th century.
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There are over 35 mountain bike trails around Brie, offering a diverse range of experiences. You'll find options for all skill levels, including 6 easy routes, 27 moderate routes, and 5 challenging trails for experienced riders.
The Brie region features a gently rolling plateau, with elevations typically between 100 and 200 meters. You'll ride through extensive forests like the Forêt de Sénart and Forêt d'Armainvilliers, and encounter river valleys such as those of the Marne and Grand Morin. Some areas, particularly near Saint-Gobain, also offer dedicated cross-country sections with jumps.
Yes, Brie offers several easy mountain bike trails perfect for beginners or family outings. For instance, the Under the Railway – Cross-country area with jumps loop from Saint-Gobain is an easy 15.4 km route. The Crécy Forest and Orvanne Valley are also known for their accessible and less technical paths.
While exploring Brie's trails, you can encounter several interesting landmarks and natural features. Keep an eye out for the historic Croix Sézinne monument near Saint-Gobain forest, or the intriguing Hermitage Rock Caves. The peaceful Étang du Pré Lardot, surrounded by diverse trees, is another beautiful spot. You might also pass the ruins of the Abbey of Saint-Nicolas-aux-Bois.
Absolutely. For experienced mountain bikers seeking a challenge, routes like the Croix Sézinne – Cross-country area with jumps loop from Saint-Gobain offer difficult terrain over 30.7 km. The Fontainebleau Forest, just a short distance from Brie, is also renowned for its numerous challenging trails and climbs.
The mountain bike trails in Brie are highly regarded by the komoot community, with an average rating of 4.2 stars from over 70 reviews. Riders often praise the varied terrain, the extensive forest networks, and the well-maintained paths that cater to different skill levels.
Yes, many of the mountain bike trails in Brie are designed as circular routes, allowing you to start and finish at the same point. For example, the Choose your path – Cross-country area with jumps loop from Saint-Gobain is a popular circular route featuring a dedicated cross-country area.
Yes, the Brie region is rich in heritage. Many trails will lead you through traditional Briard villages, past historic wash-houses, old watermills, and charming rural homes. The area around Saint-Gobain, for instance, offers routes that combine forest riding with glimpses of historical elements like the Croix Sézinne.
Yes, the region's landscape includes several waterways and scenic spots. Trails often traverse the valleys of the Marne, Grand Morin, and Petit Morin rivers. You can also find routes that pass by tranquil ponds, such as the Étang du Pré Lardot, offering peaceful views amidst diverse trees.
Yes, the area around Saint-Gobain is a popular starting point for several mountain bike trails. You can explore routes like the Coucy-le-Château-Auffrique – Saint-Gobain Caves loop from Saint-Gobain, which leads through forests and open areas, often completed in about 3 hours 11 minutes. Another option is the Saint-Gobain Caves – view of Coucy loop from Saint-Gobain.
The gently rolling terrain and extensive forests of Brie make it suitable for mountain biking through much of the year. Spring and autumn generally offer pleasant temperatures and beautiful scenery, with vibrant foliage or blooming wildflowers. Summer can also be enjoyable, especially on shaded forest trails, while winter rides are possible, though conditions may vary.


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