4.3
(208)
817
riders
140
rides
Mountain biking around Millemont offers a network of trails primarily traversing the forested landscapes and gentle hills of the region. The terrain is characterized by woodlands, often managed by the Office National des Forêts, and features numerous streams and ponds. Routes frequently pass by historical sites and cultural landmarks, providing varied scenery for mountain bikers.
Last updated: October 26, 2026
4.5
(2)
11
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.0
(3)
12
riders
15.8km
01:14
120m
120m
Easy mountain bike ride.

3.7
(3)
10
riders
30.4km
01:58
210m
210m
Moderate mountain bike ride. Advanced riding skills necessary.
8
riders
62.5km
05:25
770m
770m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.9
(7)
6
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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A rarity, cycle paths in the forest. Very, very few roots crossing it. Often, there is a parallel path for mountain bikers.
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Celtic Gaul left to the northwest of Saint-Léger the largest known dolmen in the Paris region. Measuring approximately six cubic meters and between fifteen and twenty tonnes, it is known as the Ardoue stone or Ardroue and is located in the ancient carnute forest.
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Very nice hilly area around this small pond.
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Wild... as long as the tourists aren't there.
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This dolmen is one of the few megaliths in the region and is indicative of human presence during the prehistoric era.
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I couldn't find any info on this place...
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Millemont offers a wide selection of mountain bike trails, with over 130 routes available for exploration. These trails primarily traverse the region's dense forested landscapes and gentle rolling hills.
Yes, Millemont has a good selection of trails suitable for beginners. There are 42 easy routes available. An excellent option for those starting out is the Pinardière Pond loop from Garancières, which is 9.8 miles (15.8 km) long and leads through pleasant woodlands and past water features.
Trail lengths vary significantly, catering to different preferences. You can find shorter routes like the Pinardière Pond loop from Garancières at 9.8 miles (15.8 km) taking about 1 hour 14 minutes, up to longer, more challenging rides such as the Château de Rambouillet – Vilpert Ponds loop from Garancières - La Queue, which is 39.4 miles (63.4 km) and can take over 3 hours.
While the majority of trails are easy to moderate, there are a few more challenging options for experienced riders. The region's terrain, characterized by dense woodlands and rolling hills, provides varied conditions. There are 3 difficult routes available for those seeking a greater challenge.
The mountain bike trails in Millemont are known for their diverse scenery, primarily featuring dense woodlands managed by the Office National des Forêts. You'll encounter numerous streams and ponds, and many routes also pass by historical sites and cultural landmarks, offering a rich visual experience.
Yes, many of the mountain bike trails in Millemont are designed as circular routes, allowing you to start and finish in the same location. Examples include the Ponts Quentin Stream – Pont de Gambaiseuil loop from Garancières - La Queue and the Pont de Gambaiseuil – Ponts Quentin Stream loop from Orgerus - Béhoust, both offering extensive loops through the forested landscape.
The trails often pass by interesting historical sites and landmarks. You might encounter structures like the Donjon of Houdan or the Notre-Dame du Chêne Chapel. The region is also home to several castles, such as Château des Mesnuls and Chateau de Bourdonné, which add to the cultural richness of the rides.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 160 reviews. Reviewers often praise the varied forest terrain, the presence of numerous streams and ponds, and the opportunity to combine outdoor activity with visits to historical landmarks.
Given the region's dense woodlands and numerous streams and ponds, spring and autumn are generally ideal for mountain biking, offering pleasant temperatures and vibrant natural colors. Summer can also be enjoyable, with the forest providing shade. Winter rides are possible, but trails may be muddy or slippery, especially after rain or snow.
Yes, the trails frequently lead past beautiful natural features. You can expect to see numerous ponds and streams throughout the forested areas. A notable highlight is the Rompu Pond, which is a popular point of interest in the region.
Yes, Millemont offers several family-friendly mountain biking options, particularly among its 42 easy-rated routes. These trails are generally less demanding, making them suitable for riders of varying ages and skill levels. The gentle terrain and scenic woodlands provide an enjoyable experience for families.


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