4.5
(318)
1,611
hikers
141
hikes
Hiking around Montalet-Le-Bois offers diverse natural landscapes within the Vexin Français Regional Natural Park. The region features extensive forested areas, including the Bois des Cailloux and Bois de Lainbœuf, alongside the Montcient river and Bernon stream. Trails often traverse hilly and varied terrain, with alternating ascents and descents, and lead through open agricultural fields and small valleys. This combination provides a range of environments for outdoor exploration.
Last updated: July 5, 2026
4.8
(5)
62
hikers
9.81km
02:40
140m
140m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.3
(6)
23
hikers
12.3km
03:25
220m
220m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(1)
17
hikers
10.1km
02:44
140m
140m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
15
hikers
18.3km
05:06
330m
330m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
9
hikers
9.63km
02:38
150m
150m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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For me the most beautiful panorama of the Vexin.
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Many possibilities are accessible from this place.
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From here you can enjoy a superb view of the valley and the fields of French Vexin. A real breath of fresh air!
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Founded in 1127, the Saint-Séverin church in Oinville-sur-Montcient bears witness to the long history of this commune of Yvelines. However, the north wall of the nave is the only one to survive from this period. In a Gothic style, the church was then enlarged in the 16th century. Like many towns in Île-de-France, the church is part of the cultural heritage of Oinville-sur-Montcient and is classified as a historic monument.
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magnificent view of the route taken especially opposite the Malmaison farm
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We are here in the presence of a large dolmen discovered in 1768 by the villagers. They actually believed they had discovered the remains of a monastery. The stripping of the dolmen delivered leather spatulas, vases, ashes and flint knives. It was estimated in 1894 that this monument contained 150 skeletons. It was excavated in a more scientific way in 1899 by Mr. Mortillet and restored in 1970. The archives show the presence of roofing slabs until the 18th century. The dolmen consists of large sandstone slabs forming the pillars. The gaps between the pillars are filled with flat stones.
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There are over 130 hiking routes around Montalet-Le-Bois, offering a wide variety of options for different skill levels and preferences. These trails explore the diverse landscapes of the Vexin Français Regional Natural Park.
The terrain around Montalet-Le-Bois is quite varied and often hilly. You'll encounter extensive forested areas like the Bois des Cailloux and Bois de Lainbœuf, serene river valleys along the Montcient and Bernon, and picturesque open fields. Trails frequently feature alternating ascents and descents, providing an engaging experience.
Yes, Montalet-Le-Bois offers a good selection of easier walks. Approximately 55 of the routes are classified as easy, making them suitable for a relaxed stroll or for families. An example of an easy route is the Hiking loop from Lainville-en-Vexin, which covers about 5.8 km.
Many trails lead past notable attractions. You can explore the historic grounds of Château de Jambville with its extensive park, or discover the ancient Notre-Dame Church in Vétheuil. The region also features traditional lavoirs (washhouses) and the fascinating Neolithic burial site, La Cave aux Fées, near Brueil-en-Vexin.
Yes, many of the hiking routes around Montalet-Le-Bois are circular, allowing you to start and end your journey in the same location. For instance, the Oinville loop from Brueil-en-Vexin is a popular circular option that takes you through varied landscapes.
The trails in Montalet-Le-Bois are highly regarded by the komoot community, with an average rating of 4.6 stars from over 280 reviews. Hikers often praise the quiet woodlands, the varied terrain, and the charming rural scenery that defines the area.
Yes, with 55 easy routes, there are many family-friendly options. The diverse landscapes, including forests and open fields, provide engaging environments for children to explore. Look for shorter, less challenging routes to ensure an enjoyable experience for everyone.
Generally, dogs are welcome on trails in the Vexin Français Regional Natural Park, but it's always advisable to keep them on a leash, especially in forested areas or near agricultural fields, to protect wildlife and livestock. Specific rules may apply in certain protected zones or private properties, so always check local signage.
Parking is typically available in the villages that serve as starting points for many trails, such as Montalet-Le-Bois itself, Oinville-sur-Montcient, or Jambville. Look for designated parking areas near town centers or trailheads. It's always a good idea to check specific route descriptions for parking recommendations.
Montalet-Le-Bois offers pleasant hiking experiences throughout much of the year. Spring brings lush greenery and blooming wildflowers, while autumn showcases beautiful fall foliage in the extensive woodlands. Summer provides shaded walks in the forests, and even mild winter days can be suitable for a crisp hike, though some paths might be muddy.
Yes, there is a dedicated route that explores the historic grounds of the castle. The Jambville Castle – Jambville Castle loop from Jambville is a moderate 12.5 km path that takes you through the woodlands and meadows surrounding this significant landmark.
Hikes in the Montalet-Le-Bois region vary in length and duration. Many popular routes, like the Oinville loop from Oinville-sur-Montcient (9.8 km), can take around 2 hours 40 minutes. There are also shorter, easy walks and longer, more challenging moderate routes that can take several hours to complete.


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