4.5
(194)
1,404
riders
207
rides
Touring cycling in Forêt Des Quatre Piliers offers routes through a vast forest spanning 1100 hectares, characterized by diverse tree species including oaks, pines, and beeches. The landscape features valleys and witness hills, with the Butte Grise reaching 181 meters, providing some elevation changes. Key natural attractions include the Étang de la Pimardière and the Étang de Béhoust, contributing to the area's biodiversity. Sandy paths are also present, typical of pine forests.
Last updated: July 12, 2026
4.0
(2)
19
riders
156km
09:33
1,060m
1,060m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
186km
11:33
1,340m
1,340m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
12
riders
39.2km
03:05
340m
340m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
5
riders
45.8km
03:07
290m
290m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
4
riders
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Place where Pompidou is buried
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Please note: if you want to park there to go hiking, the car park is currently only open from 2:00 p.m. on Sundays.
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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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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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Forêt Des Quatre Piliers offers a wide selection of touring cycling routes, with over 200 options available. These routes cater to various skill levels, including 59 easy, 118 moderate, and 34 difficult trails.
The terrain in Forêt Des Quatre Piliers is quite varied, featuring picturesque valleys, distinctive witness hills like the Butte Grise (reaching 181 meters), and sections with sandy paths typical of pine forests. You'll encounter a mix of surfaces and gentle elevation changes, making for an engaging ride.
Yes, the broader Rambouillet forest, which includes Forêt Des Quatre Piliers, offers family-friendly circuits suitable for children aged 10 and up. Within Forêt Des Quatre Piliers itself, there are 59 easy routes that are generally well-suited for families looking for a less strenuous ride.
While cycling, you can enjoy diverse flora including oaks, pines, beeches, ashes, hornbeams, and birches. Key natural attractions include the tranquil Étang de la Pimardière and the biodiverse Étang de Béhoust, which is home to protected species like the spotted salamander.
Yes, many of the touring cycling routes in Forêt Des Quatre Piliers are designed as loops. For example, the Yew Castle – Saint Martin Church, Orvilliers loop from Orgerus - Béhoust is a moderate 30.8 km circular route that allows you to start and finish in the same location.
The touring cycling routes in Forêt Des Quatre Piliers are highly regarded by the komoot community, holding an average rating of 4.5 stars from over 170 reviews. Cyclists often praise the diverse forest landscapes, tranquil ponds, and the variety of terrain that offers options for different ability levels.
Absolutely. For experienced touring cyclists seeking a challenge, routes like the Château de Théméricourt – Maintenon loop from Orgerus - Béhoust offer an extensive 186.2 km journey through diverse forest landscapes, typically taking over 11 hours to complete.
Forêt Des Quatre Piliers offers picturesque scenery throughout the seasons due to its diverse tree species. Spring and autumn are generally ideal for touring cycling, with pleasant temperatures and vibrant foliage. Summer can also be enjoyable, especially within the shaded forest paths, while winter rides are possible but require checking weather conditions.
While primarily a natural destination, explorers may encounter historical elements such as old crosses within the forest. The surrounding countryside also features traditional farmhouses, old wash houses, and dovecotes, offering glimpses into the region's heritage.
Yes, Forêt Des Quatre Piliers is popular for various outdoor activities. Beyond cycling, the forest is excellent for hiking and walking, including sections of the GR® 22 long-distance trail. Horse riding is also popular in the vicinity, with paths often shared by different users.
For additional cycling loops and information about the wider Rambouillet forest area, you can visit the local tourism website. They provide details on various bike rides, including three specific loops, at rambouillet-tourisme.fr.
If you're looking for a moderate challenge, consider routes like the Route des Deux Chateaux – Charming village Gambaiseul loop from Bazainville. This 47.1 km route offers a balanced ride with engaging scenery without being overly strenuous.


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