4.3
(391)
1,556
riders
250
rides
Mountain biking around Fontaine-Chaalis offers a network of trails primarily through forested areas and around historical estates. The terrain is characterized by rolling hills and woodlands, with moderate elevation changes suitable for various skill levels. The region features a mix of established paths and natural tracks, providing diverse experiences for mountain bikers.
Last updated: July 5, 2026
4.8
(37)
209
riders
41.7km
03:24
330m
330m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.4
(12)
38
riders
24.3km
02:08
310m
320m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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3.5
(13)
12
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
8
riders
25.3km
02:10
250m
250m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
9
riders
31.2km
02:30
220m
220m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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Spanning over 3,300 hectares, the Ermenonville forest, along with those of Halatte and Chantilly, forms the vast Trois Forêts massif. Once owned by the monks of Chaalis and other nearby abbeys, it is now renowned for its moors, Scots pines, and sandy soil, home to rare wildlife such as the European nightjar and the praying mantis.
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The Bruyères de Frais-Vent, located in the Ermenonville forest in the Montlognon woods, constitute an exceptional natural site. It is the only place in the massif where large blocks of sandstone rest on a vast layer of Fontainebleau sand.
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This castle is a very pretty place full of charm which according to Wikipedia dates from the 18th century and whose origins date back to the year 987!!!!!
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Perfect setting in Jean Jacques Rosseau Park to rest your feet while enjoying a picnic
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pay attention to the passages in the middle of the ONF plots. Traffic is prohibited there.
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Rather a question! We want to hike in the fresh wind trail area, with the rocks this Sunday. Is there HUNTING in this area!!?
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There are over 260 mountain bike trails around Fontaine-Chaalis, offering a wide range of options for different skill levels and preferences.
Yes, Fontaine-Chaalis offers 42 easy mountain bike trails. These routes are generally flatter and shorter, perfect for those new to mountain biking or looking for a relaxed ride.
The terrain around Fontaine-Chaalis is characterized by rolling hills and extensive woodlands, with moderate elevation changes. You'll find a mix of established paths and natural tracks, often leading through forests and around historical estates.
While the majority of trails are moderate, there are 5 difficult mountain bike routes available for experienced riders seeking a greater challenge. These routes typically feature more technical sections and steeper climbs.
Trail lengths vary significantly. For example, the Château d'Ermenonville – Crossing the small bridges loop from Ermenonville is 16.7 miles (26.9 km) and takes about 2 hours 5 minutes. Longer routes, like the Château d'Ermenonville – Haute Chaume Pond loop from Ermenonville, cover 16.2 miles (26.0 km) and can take around 2 hours 7 minutes.
Yes, many of the mountain bike trails in Fontaine-Chaalis are circular routes, allowing you to start and finish at the same point. A popular example is the Château d'Ermenonville – View from the treetops loop from Ermenonville, which is 13.2 miles (21.3 km) long.
Many trails pass by historical sites and natural beauty spots. You might encounter impressive castles such as Chantilly Castle, Pontarmé Castle, or Château d'Ermenonville. The area also features beautiful natural highlights like the Étangs de Commelles and the Jean-Jacques Rousseau Park.
The mountain bike trails in Fontaine-Chaalis are highly rated by the komoot community, with an average score of 4.4 stars from over 390 reviews. Riders often praise the extensive forested areas, the scenic routes around historical châteaux, and the tranquil pond areas that offer a diverse and enjoyable riding experience.
Yes, with 42 easy trails and many moderate routes through relatively gentle terrain, Fontaine-Chaalis can be a good option for families. Look for shorter, less technical routes that stick to wider paths for a more comfortable family outing.
Spring and autumn generally offer the most pleasant conditions for mountain biking in Fontaine-Chaalis, with mild temperatures and beautiful scenery. Summer can also be enjoyable, especially in the shaded forest areas, but be mindful of potential heat. Winter riding is possible, but trails may be muddy or icy depending on recent weather.
While the region is primarily forested, some trails offer glimpses of the surrounding landscape and historical estates. The varied terrain and elevation changes provide occasional open views, particularly around the châteaux and pond areas.
Over 2,000 mountain bikers have used komoot to explore the varied terrain and extensive network of trails around Fontaine-Chaalis, indicating its popularity within the cycling community.


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