3.0
(1)
39
riders
12
rides
Mountain biking around Mesnil-Sous-Vienne offers a network of routes through varied terrain. The region features dense woodlands, open countryside, and rolling hills, with several routes passing by historical landmarks. Elevation gains on trails indicate a landscape with undulating topography, providing opportunities for both sustained climbs and descents. The area's natural features and rural setting contribute to a diverse mountain biking experience.
Last updated: May 21, 2026
6
riders
46.0km
03:46
590m
590m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
3.0
(1)
3
riders
38.8km
02:41
370m
370m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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3
riders
42.4km
03:17
360m
360m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
3
riders
64.8km
05:04
750m
750m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
2
riders
39.1km
03:11
470m
470m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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a small flea market but with lots of items
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A military fortress with a defensive purpose, built in 1097, during the reign of William the Conqueror's second son, Gisors Castle marks a major page in the medieval history of Normandy. This fortification was intended to protect the Norman possessions of the King of England against the ambitions of the King of France. A true border place and eastern lock of Normandy, it was part of a vast campaign of fortifications in the Epte Valley, the natural boundary between the two kingdoms.
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We know of Saints Gervais and Protais that they were Christian martyrs in the 2nd century in Milan. At the time, the Roman Empire forced all its subjects to worship the emperor, which was unacceptable to Christians. If they refused, they were crucified or sent to the arena to be devoured by lions between gladiatorial fights. Thus, Saint Ambrose, bishop of Milan, found them, in 386, buried side by side. This great bishop affirmed that they had been martyrs by fidelity to their baptism. He even added "They are of a prodigious size, such as one was in ancient times." Their cult reached Gaul where a large number of churches were dedicated to them.
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I thought that the ruins were freely accessible. They are not, but are cordoned off. Tour costs €8.50 from 1.30 p.m. to 6 p.m.
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The parish church of Saint-Gervais Saint-Protais was consecrated in 1119 by Pope Calixtus 11. This Romanesque church saw its nave ravaged by fire in 1123. It was rebuilt in 1160. Thanks to funding from Queen Blanche of Castile, the people of Gisors built a Gothic choir, consecrated in 1249. It was built according to the Chartres model, common at the time in Ile-de-France, with a three-level elevation: large arcades, triforium and high windows pierced with oculi. Thanks to funding from charitable brotherhoods and trade corporations, the church underwent multiple transformations from the end of the 15th century with the addition of radiating chapels and an ambulatory at choir level. Entrusted to the Grappins, a family of architects from Vexin, the work continued in the 15th century with the reconstruction of the nave and the chapels of the side aisles in flamboyant Gothic style, then of the façade decorated with Renaissance motifs.
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Domaine du Pâtis is a farmhouse cottage labeled "accueil vélo". You will find a shelter for your bikes, a charging point for electric bikes as well as a maintenance workshop. This accommodation and reception venue immerses you in the heart of Viking history.
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Right next to the lobby there is a bakery. They are used to welcoming cyclists. Everything is homemade, they are very nice. Table and chairs outside sheltered for eating. I've been there twice, never disappointed.
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There are 13 mountain bike trails recorded on komoot for the Mesnil-Sous-Vienne region, offering a variety of routes through woodlands and countryside.
The region's dense woodlands and rolling hills are enjoyable throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer can be great for longer days. Winter riding is possible, but trails might be muddier or require more robust gear.
Yes, there is one easy mountain bike trail available. While most routes are moderate, beginners can find suitable options to explore the area's natural beauty.
For experienced riders seeking a challenge, the region offers one difficult trail. Consider the Chemin du Baron – Mont de Magny loop from Sérifontaine, which covers 65.1 km with significant elevation changes.
Mountain biking in Mesnil-Sous-Vienne features a mix of dense woodlands, open countryside, and rolling hills. You'll encounter varied surfaces, from forest paths to rural tracks, with elevation gains indicating an undulating landscape.
Many of the mountain bike trails in Mesnil-Sous-Vienne are circular, allowing you to start and end at the same point. Examples include the popular Mortemer Abbey – Trail loop from Puchay and the Les Hauts Morins Forest Path – Gisors Castle loop from Sérifontaine.
The trails often pass by historical sites and natural features. You might encounter places like the Saint-Germer-de-Fly Abbey Church or the Forest Entrance on the Trans'Oise Greenway. The Les Hauts Morins Forest Path – Gisors Castle loop from Sérifontaine specifically leads past historic castles.
The komoot community frequently praises the diverse terrain, which includes dense woodlands and open countryside. Riders appreciate the opportunities to explore historical landmarks and the well-maintained paths that cater to various skill levels.
While specific pub stops are not detailed for every route, the region is rural. Many villages along the routes, such as Étrépagny, may offer local establishments. It's advisable to check local amenities in towns near your chosen starting point, like those along the Notre Dame du Chêne – Start from the washhouse loop from Étrépagny.
Many of the trails offer a sense of discovery through the region's varied landscape. For a less-trafficked experience, consider exploring some of the moderate routes that delve deep into the local forests, such as the Notre Dame du Chêne loop from Étrépagny, which offers a mix of forest paths and open views.
Mesnil-Sous-Vienne is a rural area. While specific public transport links directly to trailheads might be limited, larger towns in the vicinity may offer bus services. It's recommended to check local transport schedules for connections to starting points like Puchay or Sérifontaine.
Parking is generally available in the villages and towns that serve as starting points for the trails, such as Puchay, Étrépagny, or Sérifontaine. Look for public parking areas or designated spots near trail access points.


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