4.3
(194)
4,841
riders
787
rides
Road cycling around Mainvilliers offers access to varied landscapes, from the generally green and rural terrain of Eure-et-Loir to the flat sections of the Beauce Plain. The region features mostly well-paved surfaces, making it suitable for road biking. Cyclists can find routes along the Eure river and connections to the historic city of Chartres, providing a mix of natural scenery and urban accessibility. The area's cycling infrastructure supports a diverse network of routes for various fitness levels.
Last updated: May 10, 2026
5.0
(3)
4
riders
46.5km
01:52
170m
170m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4.3
(3)
6
riders
57.7km
02:20
310m
310m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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4.2
(23)
331
riders
51.3km
02:06
220m
220m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.5
(4)
104
riders
53.2km
02:05
170m
170m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.0
(1)
58
riders
111km
04:23
510m
510m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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At the exit of the village, you will notice the Saint-Aignan church; it was almost entirely rebuilt from 1895 onwards on the foundations of the old church after being destroyed by an unfortunate fire.
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According to tradition, the church choir covers the remains of an older building, possibly dating back to the 6th century, which was built to house the saint's body. According to current knowledge, the commune of Saint-Piat (Sanctus Piatus in Latin) officially appeared in 1087, mentioned in a charter of the Nottonville Priory (Eure-et-Loir), on which it depended. The current building was rebuilt during the time of Francis I, as suggested by the date 1535 engraved on two buttresses of the apse and the date 1542 engraved on a piece of wood from the vault. This is according to a study by the SAEL (Eure-et-Loir Archaeological Society). The three-sided apses, the dripstone towers (horizontal members projecting from a wall), and the sculpted roof structures are a testament to the importance of the reconstructions carried out in the department during the 16th century. The church of Saint-Piat is one of them. While the church has not been officially recognized, it nevertheless contains objects that have attracted attention both for their antiquity and quality, but not always for good reason. Their artistic value, far from attracting only religious or aesthetic interest, has also aroused a covetousness that, unfortunately, remains for some of them. Fortunately, those still in place are carefully cared for and offer the curious a story to discover, a beauty to slowly ponder as they progress toward the choir.
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According to biblical accounts, the apostle "Saint Jacques" was the first person to be executed for his faith, as recorded in the Acts of the Apostles, making him an early martyr (blood witness) of Christianity. His tomb in the town named after him, "Santiago de Compostela" (Galicia, Spain), is one of the most famous and important pilgrimage destinations in the world and is often ranked third after Jerusalem and Rome. Yesterday (July 25) was his feast day in the calendar of saints. When this date falls on a Sunday (this was last the case in 2021), the Catholic Church celebrates a special "Holy Year" there (extended by Pope Francis until 2022 due to the coronavirus pandemic).
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Many centuries ago, our ancestors discovered the possibility of harnessing the power of the elements—which, while helpful and useful on the one hand, could also be a threat as untamed forces of nature—for various purposes, thus eliminating the need for human or animal muscle power. Mills like these are a good example of the human engineering skills of earlier generations: The heavy millstones used to grind grain or press oil, for example, could be powered by wind or—as in this case—water.
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The place to take a break in Illiers-Combray.
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Very beautiful church from the 15th century with a painted wooden beam ceiling.
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Unfortunately, the church was not accessible when I visited (mid-September 2024). You could only look in through a gate and the dance of death depictions on the left side were not really visible. In front of them were transparencies with skeleton drawings. Maybe those were the depictions...
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There are over 790 road cycling routes available around Mainvilliers, catering to various skill levels. This includes more than 240 easy routes, over 530 moderate options, and a selection of more challenging rides.
The terrain around Mainvilliers is generally green and rural, characteristic of the Eure-et-Loir region. You'll find mostly well-paved surfaces, ideal for road biking. The area offers a mix of relatively flat sections, particularly within the Beauce Plain, and gentle rolling hills, especially along the Eure river valley.
Yes, Mainvilliers offers numerous routes suitable for beginners and families. Many routes feature relatively flat sections and well-maintained surfaces. An excellent example is the West of Chartres — loop in the Eure valley, which is an easy 46.5 km trail exploring scenic landscapes.
The region is enjoyable for road cycling throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery. Summer is also popular, though it can be warmer. Winter cycling is possible, but be prepared for cooler temperatures and potentially wet conditions.
Yes, many of the routes around Mainvilliers are designed as loops, allowing you to start and finish in the same location. For instance, the North of Chartres — loop towards Ormoy from the city center is a popular circular route extending towards Ormoy.
Mainvilliers' proximity to Chartres means you can easily incorporate cultural visits into your rides. The magnificent Chartres Cathedral, a UNESCO World Heritage site, is a must-see. You can also explore the historic city of Chartres itself, including landmarks like the Guillaume Gate.
Absolutely. Many routes follow the peaceful banks of the Eure river, offering serene natural views. The rural landscapes provide a tranquil backdrop for your ride. You might also pass by historic mills, such as on the Moulin de Jouy – Saint-Piat Mill loop from Chartres, which adds to the scenic charm.
While the region is known for its generally gentle terrain, there are moderate routes that offer more elevation gain for those seeking a greater challenge. For example, the North of Chartres — loop towards Ormoy from the city center includes over 300 meters of elevation gain, providing a good workout.
Yes, Mainvilliers serves as a gateway to significant national cycling routes. The famous Véloscénie (Paris to Mont-Saint-Michel) traverses the Eure-et-Loir department, offering diverse landscapes. Additionally, the Camino de Santiago route (Voie de Tours) passes through the region, utilizing quiet roads for pilgrims and cyclists alike.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 190 reviews. Reviewers often praise the varied terrain, the well-paved surfaces, and the peaceful rural landscapes. The accessibility to Chartres and the scenic Eure river valley are also frequently highlighted as major attractions.
Yes, the Eure river and its banks offer several peaceful routes. The West of Chartres — loop in the Eure valley is a prime example, allowing you to explore the scenic river valley to the west of Chartres.
Indeed. Routes like the Moulin de Jouy – Saint-Piat Mill loop from Chartres take you past historic mills. Another route, the Ponds of Fontenay sur Eure – Fontenay-sur-Eure Church loop from Lucé, guides you through natural areas featuring local ponds and charming village churches.
For additional information on cycling opportunities and resources in the broader Eure-et-Loir region, you can consult the local tourism boards. The Tourisme28 website and Chartres Tourisme website provide useful details on biking and hiking in the area.


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