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France
Centre-Val de Loire
Dreux

Le Boullay-Thierry

The best cycling routes around Le Boullay-Thierry

4.8

(96)

241

riders

87

rides

Touring cycling routes around Le Boullay-Thierry traverse a landscape characterized by gentle river valleys, agricultural plains, and scattered woodlands. The region features a network of quiet country roads and dedicated greenways, offering varied terrain suitable for cycling. Elevation changes are generally modest, making it accessible for a range of abilities.

Best touring cycling routes around Le Boullay-Thierry

  • The most popular touring cycling route is Eure Valley Greenway – The finish line in Chartres loop from Villemeux-sur-Eure, a 78.6 miles…

Last updated: July 2, 2026

5.0

(7)

27

riders

#1.

The finish line in Chartres – Chartres loop from Le Boullay-Thierry

119km

06:50

410m

410m

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy
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Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.

Hard
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Tips from the Community

Paul_C
October 20, 2025, Château de Mormoulins

The Moulin de Mormoulins is a watermill located on the Eure River in the hamlet of Mormoulins. This mill dates back to the 18th and 19th centuries and is a listed historical monument. You can admire the old stone building, the wooden wheel, and the canal that diverts water from the river as you pass in front of the mill. The mill is surrounded by green fields and trees, creating a peaceful and relaxing atmosphere.

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There were once two parishes in Maintenon: "St. Nicholas," a parish serving the castle and its dependent houses. The church of St. Nicholas, adjoining the castle, now deconsecrated, still stands on Maintenon's main square. "St. Peter," a parish covered by the surveys in this table, is a current parish in the commune. In addition, there was a priory, founded in 1220 under the name of the Priory of Our Lady of Maintenon. The church of Saint-Pierre in Maintenon is mentioned at the beginning of the 12th century, but nothing appears to have survived from this period. Indeed, the Count of Montgomery, a Huguenot, passed through Maintenon in 1567 and ruined the church. In 1692, Madame de Maintenon rebuilt the church of Saint-Pierre, which had fallen into ruin and had become too small for a population that had grown from 700 to 1,100 with the arrival of labor for the construction of the aqueduct. However, there is no evidence that the new church was built on the site of the old one. The foundation stone of the new church of Saint-Pierre was laid on June 4, 1692, by the Vicar General. The blessing took place on July 17, 1694. Bishop Godet des Marais subsequently consecrated the building. In 1736, the large "Henriette" bell was blessed by Mr. Jean François DEREYROLES, parish priest, in the presence of "the Most High and Most Powerful Lord, Monsignor Jean Paul François de NOAILLES, Count of AYEN" and by "the Most High and Most Powerful Lady, Madame Henriette Louise DAGUESSEAU de FRESNE, Countess of AYEN." From 1805 to 1813, Duke Jean-Paul de NOAILLES and his wife refurnished and decorated the Saint-Pierre church (the woodwork, credenzas, and pews were redone). The church's embellishment continued until 1899. The church's architecture is unremarkable. However, it is listed as one of the few Baroque churches in the department. The choir is flanked on one side by a sacristy and on the other by a room called "the vault." This is because, until the 1990s, it contained the bodies of some members of the Noailles family, who were buried there in stacked boxes that are still visible, but disused. The organ, installed in the gallery, is no longer in use. It had been partially dismantled for a renovation that proved too expensive, and some of the pipes were stolen. During the 1939-1945 war, almost all of the old stained-glass windows were destroyed and replaced with modern ones, the work of a master glassmaker from the region: Victor Cot-Dezan.

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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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A short stroll through fields, suitable for a walk of about two hours for all levels, pleasant, but nothing more, quite "flat". The visit to the park and the castle of Maintenon deserve more attention than this walk.

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Vin
June 30, 2025, la porte guillaume

The current remains are those of the 15th-century gate and its barbican or artillery boulevard. The earliest remains on the site date back to the 1st century, with the remains of an ancient domus, a street, and its wooden gutter. The first Guillaume Gate was built around 1185; a wall can still be seen a little further along Rue de la Porte Guillaume. Source: https://journals.openedition.org/cem/14214?lang=en

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clec
April 27, 2025, Maintenon

One of the most beautiful castles in the area!

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Very beautiful pond

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Just a stone's throw from Dreux, the Écluzelles lake stretches through the heart of a vast, protected natural area. Popular with windsurfers and paddleboarders, it offers a pleasant setting for strolling along its tranquil banks.

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Frequently Asked Questions

How many touring cycling routes are available around Le Boullay-Thierry?

There are over 95 touring cycling routes around Le Boullay-Thierry, offering a wide variety of options for different skill levels and preferences.

Are there easy touring cycling routes suitable for beginners or families?

Yes, nearly half of the routes, specifically 48, are rated as easy. An excellent option for a relaxed ride is the Maintenon – Maintenon Castle loop from Chaudon, which is 16.6 miles (26.7 km) long and passes by historic sites.

What kind of terrain can I expect on touring cycling routes in Le Boullay-Thierry?

The region is characterized by gentle river valleys, expansive agricultural plains, and scattered woodlands. You'll primarily ride on quiet country roads and dedicated greenways, with generally modest elevation changes, making it accessible for various abilities.

Are there any challenging routes for experienced touring cyclists?

Yes, for experienced cyclists seeking a challenge, there are 7 difficult routes. The Eure Valley Greenway – The finish line in Chartres loop from Villemeux-sur-Eure is a demanding 78.6 miles (126.5 km) trail that follows the scenic Eure Valley Greenway.

What are some interesting landmarks or attractions I can see along the routes?

Many routes offer views of historical points of interest. You might encounter sites like the impressive Château de Mormoulins or the historic Nogent-le-Roi Castle. The Maintenon – Maintenon Castle loop from Chaudon specifically leads past Maintenon Castle.

Are there circular touring cycling routes available?

Yes, many of the touring cycling routes around Le Boullay-Thierry are designed as loops, allowing you to start and finish at the same point. Examples include the Saint-Piat Mill – The finish line in Chartres loop from Serazereux and the Pond of Boullay-Thierry – The Châtelains cemetery loop from Le Boullay-Thierry.

What is the best time of year to go touring cycling in Le Boullay-Thierry?

Spring and autumn generally offer the most pleasant conditions for touring cycling in Le Boullay-Thierry, with mild temperatures and beautiful scenery. Summer can be warm, while winter rides are possible but may require appropriate gear for cooler, potentially damp weather.

Where can I find parking for bike trails in Le Boullay-Thierry?

Parking is typically available in the village centers of Le Boullay-Thierry and surrounding communes, as well as at designated trailheads or near popular attractions. Always check local signage for specific parking regulations.

What do other touring cyclists enjoy most about cycling in Le Boullay-Thierry?

The area is highly rated by the komoot community, with an average score of 4.8 stars from over 100 reviews. Reviewers often praise the quiet country roads, the picturesque agricultural landscapes, and the historical points of interest found along the routes.

Are there any routes that pass by water features or ponds?

Yes, some routes incorporate local water features. For instance, the Pond of Boullay-Thierry – The Châtelains cemetery loop from Le Boullay-Thierry offers views of the local pond, providing a refreshing element to your ride.

What is the typical length of touring cycling routes in this area?

Route lengths vary significantly, from shorter, easy loops like the Pond of Boullay-Thierry – The Châtelains cemetery loop from Le Boullay-Thierry at 9.7 miles (15.6 km) to much longer, challenging rides such as the Eure Valley Greenway – The finish line in Chartres loop from Villemeux-sur-Eure, which spans 78.6 miles (126.5 km).

Can I find routes that offer good viewpoints or scenic overlooks?

While the terrain is generally gentle, the routes traverse open agricultural plains and river valleys, offering expansive views of the French countryside. The varied landscape provides numerous scenic spots, especially along the Eure Valley Greenway.

Most popular routes around Le Boullay-Thierry

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