Attractions and places to see around Le Tertre-Saint-Denis offer a glimpse into the rural character of the Yvelines department in France. This small commune is situated on a plateau, providing an undulating and green landscape. The area maintains an authentic rural essence, with its history reflected in local landmarks. Visitors can explore historical sites and natural features that define this preserved environment.
Last updated: July 6, 2026
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This section parallel to the Seine cycle route is not very smooth. The large number of holes are filled with ballast (large stones) from the SNCF tracks. Without suspension it hurts :D
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Very beautiful monument this Gothic Collegiate Church of Notre-Dame de Mantes-la-Jolie
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This gas-fired Edf power station has been closed for several years; however, these two immense chimneys, which I hope will remain as a testimony to a certain era, have the major interest of being visible from dozens of kilometers around and are for me an excellent landmark to locate myself during my bike rides.
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The Porcheville thermal power plant is a former power plant, its final shutdown having taken place on May 1, 2017. It is located in Porcheville in the Yvelines (France) on the banks of the Seine, about fifty kilometers northwest of Paris. It was operated by EDF. The two chimneys of the plant are 220 meters high to evacuate their fumes well above the 70 m cliff facing the site on the left bank of the Seine.
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Several dozen kilometers from the center of Paris, the Notre-Dame de Mantes-la-Jolie collegiate church does not only have its name in common with the emblematic Parisian cathedral. Its facade, its style and its structure on three levels are very reminiscent of its big sister in the Ile-de-France region.
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Small stone church surrounded by greenery and groves of lavender, which make it an idyllic place to stop and recover for a few moments. At the border of Yvelines and Eure-et-Loire, you are in the middle of the countryside and all to the west of Ile-de-France, far from the noise of Paris!
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college in full restoration.
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Beyond the local Church of Saint-Laurent-et-Saint-Denis with its 17th-century altarpiece, you can visit the Donjon and Fortified Site of Montchauvet, which features vestiges of a 12th and 13th-century church and ruins of a keep. Another significant historical landmark is the Collegiate Church of Notre-Dame de Mantes-la-Jolie, known for its architectural resemblance to Notre-Dame in Paris.
Yes, you can discover Château de Tilly, a beautiful Louis XIII-style residence with distinctive domed towers, set within a six-hectare park. It offers a glimpse into the region's aristocratic past.
Le Tertre-Saint-Denis is situated on a plateau, offering an undulating and green landscape typical of the Yvelines department. The area is characterized by its preserved natural setting, providing a tranquil rural environment for visitors to enjoy.
The region offers various outdoor activities. For hiking, you can explore routes like the 'Rosny Forest – Calcareous grasslands loop' or the 'Walk Near the Gas Wells – Ferme des Huit Routes loop'. Cyclists can enjoy road cycling routes such as the 'Porte de Bretagne – Château de Tilly loop'. You can find more details on these activities in the hiking guide, running guide, and road cycling guide for the area.
While Le Tertre-Saint-Denis itself is a small rural commune, the nearby Collegiate Church of Notre-Dame de Mantes-la-Jolie is noted as family-friendly. The preserved rural environment and gentle landscapes also make it suitable for family walks and exploring the countryside.
The region's undulating and green landscape is best enjoyed during the milder months, typically from spring through early autumn (April to October), when the weather is pleasant for hiking, cycling, and exploring historical sites. This allows for comfortable enjoyment of the rural setting.
Consider visiting the Neauphlette Church. This small stone church, with its 12th-century origins and remaining bell tower, offers a serene and idyllic stop surrounded by greenery. It's a testament to the region's quiet historical charm.
Le Tertre-Saint-Denis is situated on a plateau with elevations ranging between 123 and 168 meters. This results in an undulating and green landscape, offering moderate terrain suitable for various hiking levels, from easy walks to more challenging routes through forests and grasslands.
Le Tertre-Saint-Denis is a small rural commune, and while it's part of the Grand Paris Seine et Oise urban community, public transport options directly to the village might be limited. It's advisable to check local bus schedules or consider driving for more flexibility in exploring the surrounding attractions.
The commune's location on a plateau provides characteristic undulating and green landscapes. While specific named viewpoints aren't highlighted, the general elevated terrain and preserved rural environment offer numerous scenic spots for enjoying the countryside views during walks or cycles.
Visitors appreciate the blend of historical depth and natural tranquility. The Donjon and Fortified Site of Montchauvet is praised as one of the most beautiful villages in Île-de-France for its many vestiges. The Neauphlette Church is valued for its idyllic setting and historical significance.
The preserved rural environment and numerous hiking trails around Le Tertre-Saint-Denis are generally suitable for dog walking. Routes like the 'Rosny Forest – Calcareous grasslands loop' or the 'Walk Near the Gas Wells' offer ample space for you and your dog to explore the natural landscape. Always ensure dogs are kept on a leash where required and respect local regulations.
As a small rural commune, Le Tertre-Saint-Denis has limited facilities. For accommodation, cafes, or restaurants, you would typically need to look in larger nearby towns within the Yvelines department. The village of Montchauvet, for instance, has a restaurant called 'the green mare' mentioned in visitor tips for its historical site.


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