4.5
(57)
263
riders
35
rides
Gravel biking around Boullay-Les-Troux offers diverse terrain within the Haute Vallée de Chevreuse Regional Natural Park, an hour from Paris. The landscape features a mix of rolling hills, dense forests, and open fields, characteristic of the Hurepoix plateaus and the Chevreuse Valley. Routes often follow forest tracks, single tracks, and paths across plains, with some incorporating river valleys like the Yvette. The area maintains a rural character, providing varied natural settings for cycling.
Last updated: May 24, 2026
4.6
(9)
39
riders
29.4km
01:44
240m
240m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
4.7
(10)
44
riders
27.6km
01:34
230m
230m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.

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4.5
(6)
14
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.3
(3)
14
riders
37.9km
02:14
280m
280m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
8
riders
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
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Popular around Boullay-Les-Troux
Beautiful castle in the village of Janvry
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a portion of the track has been closed since March 31, 2025 (for 1 month)
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Unmissable Gravel rides to reach Choisel
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Pretty castle well glimpsed at the heart of a beautiful gravel ride between Choisel and St Rémy
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very nice gravel descent from Boullay-les-Troux to St Rémy
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[In Advent] "we hear in the Gospel the beginning of the ministry of Saint JEAN BAPTIST. He appears in the desert and calls people to conversion so that they may prepare for the coming of the Lord. His call reminds us that Advent is not only a time of waiting, but also of interior preparation. "Prepare the way of the Lord, make straight his paths" (Luke 3:4). John's message challenges us to examine our lives. What "rough paths" and "crooked roads" are there in our hearts? Where have we perhaps distanced ourselves from God or lost sight of our fellow human beings? John invites us to remove these obstacles and reorient our lives. But his call has not only a personal dimension, but also a social one: the way of the Lord is a way of justice, peace and reconciliation. When we pave the way of the Lord, we bring light into the darkness of the world and hope into the hearts of people." (Text: Michael Inden, Diocesan President of the KAB in the Archdiocese of Cologne)
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Great view when you are at the top of the viaduct!
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There are over 25 dedicated no-traffic gravel bike trails around Boullay-Les-Troux, offering a diverse range of experiences for all skill levels. These routes are carefully selected to ensure a peaceful ride away from vehicular traffic, allowing you to fully immerse yourself in the natural beauty of the Haute Vallée de Chevreuse Regional Natural Park.
Yes, the region offers several easy routes suitable for families. While many trails are moderate to difficult, you can find options that provide a gentle introduction to gravel biking. For example, parts of the routes that follow old railway tracks or greenways are often flatter and more accessible. Always check the route details for elevation and surface type to ensure it matches your family's comfort level.
The no-traffic gravel trails around Boullay-Les-Troux offer a rich tapestry of landscapes. You'll ride through lush green forests, across open fields, and along the valleys of small rivers like the Yvette. The area is known for its rolling hills and the charming rural character of the Hurepoix plateaus and Chevreuse Valley. Many routes provide scenic views and a true escape into nature.
You'll find several historical landmarks along the trails. The region is dotted with impressive châteaux. For instance, routes often pass near the Château de Breteuil or offer views of the Château de La Madeleine, which also houses the Maison du Parc. The Fauvettes Viaduct is another notable point of interest on some routes, such as the Viaduc de la Prédécelle – Fauvettes Viaduct loop from Limours.
Yes, many of the no-traffic gravel routes around Boullay-Les-Troux are designed as circular loops, allowing you to start and end at the same point. This is convenient for those driving to the area. An example is the Fauvettes Viaduct – Château des Bordes loop from Saint-Rémy-lès-Chevreuse, which offers a substantial ride through varied terrain.
The Haute Vallée de Chevreuse is enjoyable for gravel biking throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful foliage. Summer provides long daylight hours, though some forest sections offer welcome shade. Even winter can be suitable, with crisp air and quieter trails, but be prepared for potentially muddy sections, especially after rain.
Yes, the region is well-connected to public transport, making it accessible from Paris. Saint-Rémy-lès-Chevreuse, a common starting point for many routes in the area, is directly accessible via the RER B line. From there, you can easily connect to various gravel trails, including those leading towards Boullay-Les-Troux.
For experienced riders seeking longer distances, there are several challenging no-traffic gravel routes. These often combine forest tracks, single tracks, and paths across plateaus, with significant elevation gains. The Viaduc de la Prédécelle – Greenway of the Pays de Limours loop from La Hacquinière, for instance, covers over 50 km with considerable climbing, offering a rewarding challenge.
The no-traffic gravel trails in Boullay-Les-Troux are highly rated by the komoot community, with an average score of 4.4 stars. Reviewers often praise the peacefulness of the routes, the beautiful and varied landscapes, and the excellent escape from city life. The combination of natural beauty and historical sites is frequently highlighted as a major draw.
Many routes in the Haute Vallée de Chevreuse offer stunning views, especially from higher points on the plateaus or overlooking the valleys. The area around the Château de La Madeleine is particularly noted for its impressive views over the valley. Routes that traverse the Hurepoix plateaus also provide expansive vistas of the surrounding countryside.
Parking is generally available in the villages and towns that serve as common starting points for these trails, such as Saint-Rémy-lès-Chevreuse or Limours. Look for designated public parking areas. It's always a good idea to check local parking regulations before you arrive, especially in smaller hamlets.


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