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France
Ile-de-France
Mantes-La-Jolie

Le Tertre-Saint-Denis

Attractions and Places To See around Le Tertre-Saint-Denis - Top 20

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.

Best attractions and places to see around Le Tertre-Saint-Denis

  • The most popular attractions is Château de Tilly, a castle that is a Louis XIII-style residence. It features two towers with a domed roof and is set within a six-hectare park.
  • Another must-see spot is Donjon and Fortified Site of Montchauvet, a historical site with vestiges including a 12th and 13th-century church and ruins of a keep. This site also features the arch of the gateway to Brittany.
  • Visitors also love Collegiate Church of Notre-Dame de Mantes-la-Jolie, a religious building with a facade and structure reminiscent of Notre-Dame in Paris. It is currently undergoing restoration.
  • Le Tertre-Saint-Denis is known for its historical sites, religious buildings, and preserved rural landscapes. These attractions provide a variety of places to see and explore, from ancient churches to fortified ruins.
  • The attractions around Le Tertre-Saint-Denis are appreciated by the komoot community, with more than 25 upvotes and 2 photos shared by visitors.

Last updated: July 6, 2026

Neauphlette Church

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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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Porcheville Power Plant

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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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Donjon and Fortified Site of Montchauvet

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One of the most beautiful villages of Île de France accessible by a small climb whatever your route of arrival. Several historical monuments to see: first of all the 12th and 13th century church, the ruins of the keep which are the remains of a castle having been the scene of a battle during the Hundred Years War, and the arch of the gateway to Brittany.

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Very beautiful collegiate church in the town of Mantes la Jolie.

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Château de Tilly

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Estate built in the first third of the 17th century, having preserved its park, its outbuildings and its alley of lime trees from the end of the 18th century. The castle stands opposite the church of Tilly, it was bought and saved from ruin in 1936 by François Delalande, his daughter still occupies it today. It is a beautiful Louis XIII-style residence, flanked by its two towers with an original domed roof, in a six-hectare park entirely surrounded by walls.

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Road Cycling Routes around Le Tertre-Saint-Denis

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Tips from the Community

AdrienGravel
June 2, 2025, Centrale Electrique de Porcheville

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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clec
April 2, 2025, Château de Tilly

Beautiful castle (private).

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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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Frequently Asked Questions

What historical sites can I explore around Le Tertre-Saint-Denis?

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.

Are there any castles or grand estates to visit near Le Tertre-Saint-Denis?

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.

What kind of natural landscapes can I expect to see in Le Tertre-Saint-Denis?

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.

What outdoor activities are available near Le Tertre-Saint-Denis?

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.

Are there any family-friendly attractions or activities in 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.

What is the best time of year to visit Le Tertre-Saint-Denis for outdoor activities?

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.

Can I find any unique or less-known places to visit, a 'hidden gem' perhaps?

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.

What are the terrain and elevation like for hiking around Le Tertre-Saint-Denis?

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.

Is Le Tertre-Saint-Denis accessible by public transport?

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.

Are there any specific viewpoints or scenic spots to enjoy the natural beauty?

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.

What do visitors particularly appreciate about the attractions near Le Tertre-Saint-Denis?

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.

Are there any dog-friendly walks or areas around Le Tertre-Saint-Denis?

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.

Where can I find accommodation or places to eat near Le Tertre-Saint-Denis?

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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