4.3
(268)
10,550
runners
450
runs
Jogging routes around Boissy-L'Aillerie offer access to the Vexin Français Regional Natural Park, characterized by rural landscapes and diverse natural features. The area is situated along the Viosne River, providing scenic routes along its banks. Runners can explore marshlands like the Marais de Boissy-Montgeroult, which features an old alluvial forest and wet meadows. The terrain includes varied paths suitable for different fitness levels, from gentle river trails to routes with moderate elevation changes.
Last updated: May 7, 2026
39
runners
10.8km
01:11
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
runners
14.3km
01:33
150m
150m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
7
runners
19.7km
02:15
210m
210m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
runners
12.5km
01:23
140m
140m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The Jules-César roadway in Vexin bears witness to Roman influence in the region. It is part of a network of military roads dating back more than 2,000 years. This historic path, rehabilitated in 2000, extends over 21 km between Puiseux-Pontoise and Arthieul in Magny-en-Vexin. Suitable for all levels, it reveals the natural panoramas of Vexin.
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Located on the Jules César road, this is one of the two crosses placed nearby (the other is the Labathe cross)
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Courcelles-sur-Viosne is a town in the French Vexin region and its main characteristic is that it is on the way to the Chaussée de César, a trade route dating from the Roman Empire.
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Cross located on the Chaussée Jules César, erected in the 13th Century by the Templars.
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Church of Us, mixing Roman and Gothic style. While most churches in the region have a standard cruciform shape, this one is said to be asymmetrical. This means that where the South brace should be located (symmetrical to the North brace), there is a chapel. It is likely that the original southern brace was considered too narrow...while the current chapel is, on the contrary, too wide. Indeed, it is supported by 'only' the two original vaults, while it requires, by its shape and size, four. The result is a somewhat surprising architecture, with fairly random proportions and (very) sharp angles.
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A beautiful piece of nature, the building opposite the wash house has a magnificent architecture.
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Komoot offers a wide selection of running routes in the area, with over 460 trails to choose from. These routes cater to various fitness levels, ranging from easy paths to more challenging runs with significant elevation changes.
You'll experience a blend of natural beauty and rural charm. The area is a gateway to the Vexin Français Regional Natural Park, offering diverse landscapes. Many routes follow the scenic
Viosne River, and you can explore unique marshlands like the Marais de Boissy-Montgeroult, which features an old alluvial forest and wet meadows. You might also encounter historical sites and open views of the Vexin countryside.
Yes, there are approximately 40 easy routes suitable for beginners or those looking for a less strenuous run. These often feature flatter terrain along riverbanks or through gentle countryside, allowing you to enjoy the scenery without significant climbs.
Absolutely. For those seeking a longer challenge, routes like the Labathe Cross – Justice Cross loop from Boissy-l'Aillerie offer nearly 20 kilometers of running. This particular route is considered difficult due to its length and elevation, providing a great option for experienced runners.
The running routes in Boissy-L'Aillerie are highly regarded by the komoot community, boasting an average rating of 4.2 out of 5 stars from over 250 reviews. More than 11,000 runners have explored the varied terrain, often praising the natural beauty and well-maintained paths.
Yes, many of the running routes around Boissy-L'Aillerie are circular, allowing you to start and finish at the same point. For instance, the Château de Grouchy loop from Boissy-l'Aillerie is a popular moderate circular route covering about 10.8 km.
You can discover several points of interest. Some routes pass by the Château de Grouchy and its ponds. You might also encounter unique natural features like the Large Sinkhole in Parc Naturel Régional du Vexin Français or enjoy a View of the Vexin. The nearby village of Auvers-sur-Oise, famous for its Impressionist connections, also offers scenic views and historical charm.
Yes, you can definitely run through the unique marshland environments. The La Grande Mare – Étang des Aulnes loop from Montgeroult - Courcelles, for example, is a 9.6 km trail that leads through marshland and past the Étang des Aulnes, offering a distinct natural experience.
Boissy-L'Aillerie is accessible by public transport, particularly via train lines that connect to nearby towns. From the village center, many routes are directly accessible, allowing you to start your run without needing a car. It's advisable to check local bus and train schedules for specific connections to trailheads.
Parking is generally available in and around the village of Boissy-L'Aillerie, particularly near the village center or close to popular trailheads. Many routes, being loops, often start and end in areas with convenient parking options, allowing you to easily access the trails.
Yes, the La Grande Mare – Château de Montgeroult loop from Montgeroult - Courcelles is a moderate 11.2 km path that specifically winds through the local countryside, passing by the historic Château de Montgeroult, offering a blend of natural beauty and architectural interest.


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