4.3
(3)
23
riders
3
rides
Gravel biking around Betz, located in the Oise department of the Picardy region, offers a network of no traffic gravel bike trails through diverse landscapes. The area is characterized by extensive forests, such as the Forest of Retz and the Forest of Compiegne, alongside river valleys like the Automne Valley and the Ourcq Canal. These features provide varied terrain suitable for quiet gravel cycling, ranging from flat canal paths to more undulating forest routes.
Last updated: May 7, 2026
3.5
(2)
10
riders
61.5km
04:58
450m
450m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
3
riders
65.0km
05:15
630m
630m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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5.0
(1)
7
riders
29.8km
01:58
300m
300m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
43.2km
02:35
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Betz
Listed as a Historic Monument since 1862, the church of Montagny-Sainte-Félicité stands apart from the village, on the site of a former priory dependent on the Abbey of Saint-Vincent de Senlis. Rebuilt in the 16th century in a flamboyant Gothic style, it is distinguished by its tall, 30-meter openwork octagonal spire, one of the most elegant in the Oise.
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The Château de La Ferté-Milon is an unfinished castle in La Ferté-Milon, France. It was commissioned by Louis of Orléans at the end of the 14th century but was never completed due to his death. The castle is known for its long façade and the remains of a gateway, which are now a popular attraction. The castle is a reminder of the grandeur Louis of Orléans envisioned, but also of the ravages of time. It is a popular destination for tourists and history and architecture enthusiasts.
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Nestled on the banks of the Ourcq River, in the shadow of the ruins of the impressive fortress, lies the charming town of La Ferté-Milon. La Ferté-Milon Castle was founded at the end of the 14th century but was never completed due to the assassination of the Duke of Orléans in 1407. Nevertheless, you'll find interesting remains here, such as the impressive façade with its window openings, the machicolations, and the low reliefs, the most remarkable of which depicts the Coronation of the Virgin. Magnificent views over the Ourcq valley can be admired from the castle's forecourt... Other monuments you can visit in La Ferté-Milon include the Saint-Nicolas Church, with its 16th-century stained-glass windows depicting scenes from the life of Christ and a vision of the Apocalypse, and the Church of Our Lady, dating from the 12th to the 16th centuries, where the famous fable writer Jean de La Fontaine married Jean Racine's cousin. Literature enthusiasts should definitely visit the Jean Racine Museum, dedicated to the life and work of the famous playwright, which houses many memorabilia from his paternal grandmother's house, where the writer spent his childhood.
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The towpath that crosses La Ferté Milon is a must. As the section is closed to bicycle traffic, it is a must-see hiking trail, rather than a must-see mountain bike trail; and given the terrain, it would even be more Gravel than mountain bike, if bicycles were allowed to circulate. The Ruins of the Castle is a good place to stop: for the history, the panoramic view and the restaurant.
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While strolling along the Canal de l'Ourcq, you will pass by the Marolles lock with an interesting view of the canal, the lock, an island, the church and the castle. https://aufildelourcq.org/index.php https://fr.wikipedia.org/wiki/Marolles_(Oise)
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On the banks of the Ourcq, the ruins of the castle of La Ferté Milon (this is the facade of the old castle) dominate the city. Started in 1399 on the orders of Louis d'Orléans, Duke of Valois and brother of King Charles VI, this castle should have been the great work of this patron and builder prince. The project was conceived as a response to his castle of Pierrefonds then under construction. But at Pierrefonds Louis d'Orléans had made do with what already existed; at La Ferté-Milon he made a clean sweep of the previous castle and began from scratch the construction of what should have become the most grandiose castle in Western Europe! Alas, in 1407, the assassination of Louis by the partisans of his uncle and sworn enemy John the Fearless, Duke of Burgundy, abruptly interrupted the work. Only one facade was completed. A facade that in itself already constitutes a marvel of 15th century architecture! Despite appearances, the old expression of "castle-fort" does not apply to this colossus intended to be much more of a palace than a defensive site. It is then designed and decorated in such a way as to affirm the wealth, power and faith of one of the greatest lords of his time. https://lafertemilon.fr/fr/rb/795966/le-chateau-ses-remparts
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Along the towpath, the view opens up for a moment onto the church of Mareuil-sur-Ourcq which stands on the other side of the canal. This Gothic-style building was built in three stages starting in the 13th century.
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Located in Coyolles, this former castle of the lords of Fossés was built during the 16th century. This building remains a fine example of a stately home with its enclosure and vegetable garden.
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There are several dedicated no-traffic gravel bike trails around Betz, offering a variety of experiences. Our guide features 4 carefully selected routes that prioritize quiet paths and natural surroundings.
The Betz area, nestled in the Oise department of France, is characterized by its extensive forests, such as the Forest of Retz, and tranquil river valleys. These natural features provide a perfect setting for gravel biking away from roads, often utilizing former railway lines or forest tracks. You'll find a blend of peaceful woodlands and scenic waterways like the Ourcq Canal.
The no-traffic gravel trails around Betz offer a range of difficulties. You'll find routes suitable for moderate riders, such as the VOIE VERTE DU VALOIS – La Ferté-Milon loop from Thury-en-Valois, which is a great option for those looking for a less strenuous ride. There are also more challenging options, like the Crépy-en-Valois to the Ourcq Canal and the Forest of Retz, which features more significant elevation changes and longer distances.
Yes, for families or beginners seeking a gentler experience, the VOIE VERTE DU VALOIS – La Ferté-Milon loop from Thury-en-Valois is an excellent choice. This route follows a 'voie verte' (greenway), which typically means well-maintained, flat, and car-free paths, ideal for a relaxed ride.
The routes vary significantly. For instance, the VOIE VERTE DU VALOIS offers a moderate 29.7 km loop, taking around 2 hours. For longer adventures, routes like The Retz Forest and the Automne Valley stretch over 64 km, requiring about 5 hours to complete, offering a full day out in nature.
Many routes traverse the beautiful Forest of Retz, offering tranquil woodland views. The Crépy-en-Valois to the Ourcq Canal route provides picturesque sections along the canal. You might also encounter charming villages and historical points of interest. For specific points of interest, consider visiting the View of Mareuil-sur-Ourcq church or the Houssoy Castle, which are highlights in the wider Betz area.
Yes, several routes are designed as loops, allowing you to start and finish at the same point. A great example is the VOIE VERTE DU VALOIS – La Ferté-Milon loop from Thury-en-Valois, which is a convenient circular option for exploring the region without needing a return trip by other means.
Spring and autumn generally offer the most pleasant conditions for gravel biking around Betz, with mild temperatures and beautiful scenery. Summer can also be enjoyable, especially in the shaded forest sections, but be prepared for warmer weather. Winter riding is possible, but some trails might be muddy or require more robust gear due to rain or occasional frost.
Parking availability varies by trailhead. For routes starting in towns like Crépy-en-Valois or Thury-en-Valois, you can typically find public parking areas within the town. It's always advisable to check local parking regulations and availability before you set out.
Given the mix of forest paths, canal towpaths, and greenways, a versatile gravel bike with tires between 38mm and 45mm width will provide a comfortable and efficient ride. Depending on the season, waterproof clothing is advisable, especially for forest sections that can retain moisture. Always carry a repair kit, sufficient water, and navigation tools.
The area is highly rated by the komoot community, with an average score of 4.25 stars. Reviewers often praise the tranquility of the routes, the immersive experience of cycling through dense forests, and the escape from vehicular traffic. The well-maintained greenways and scenic canal paths are frequently highlighted as favorites.


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