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Saint-Prix

Top 7 Natural Monuments around Saint-Prix

Best natural monuments around Saint-Prix include a variety of natural features within the Val-d'Oise department. The area is characterized by its green spaces, including parts of the Montmorency Forest, which offers opportunities for walks and enjoying nature. Nearby Lac d'Enghien provides additional natural appeal with its landscaped surroundings. These locations offer diverse natural landmarks and popular walks for exploration.

Best natural monuments around Saint-Prix

  • The most popular natural monuments is Singletrack along the Marais de Stors, a trail that…

Last updated: October 5, 2026

Singletrack along the Marais de Stors

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This bucolic path runs along the Stors marsh nature reserve. The ground quickly becomes muddy in bad weather and the days following the rain. That said, the setting is beautiful …

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The Blue Lake of Carnelle

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Lac Bleu is one of the two bodies of water in the Carnelle forest. On sunny days, its name takes on its full meaning. But there is another reason for …

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Saint Radegonde Fountain

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The Sainte Radegonde fountain is one of the essential points of the Montmorency forest. It was the object of a pilgrimage because it was said that its water healed the …

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Covered alley

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This funerary megalith dates back to the beginning of the Neolithic period! It is the largest and most famous of all the covered alleys in the Paris region, which has …

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Breathtaking view of the Stors Marsh

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Here we have a beautiful view of the Marais de Stors nature reserve, a preserved site in the middle of the forest. We appreciate the density of the greenery. Over …

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Tips from the Community

Christophe ANGION
August 31, 2025, Fontaine Sainte Radegonde

Very nice trail running outing in the forest 🌳

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The fountain is on a small bend, be careful because it is quickly invaded by plants

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What is to be remembered from this route is the passage through the Carnelle forest. However, there are too many roads on the Isle Adam and along the Oise. No particular difficulty.

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pretty lake hidden in the middle of the forest

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High place of pilgrimage (in the region anyway) between the 15th and 18th centuries. The water from this fountain was said to have the power to cure various skin diseases (scabies for example). This pilgrimage ceased shortly before the French Revolution.

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Vince
May 21, 2022, Allee couverte

This funerary megalith dates back to the beginning of the Neolithic period! It is the largest and most famous of all the covered alleys in the Paris region, which has become the archetype of burials associated with the Seine-Oise-Marne culture. All the slabs are in Fontainebleau sandstone, several outcrops of which are visible on the hillside.

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This bucolic path runs along the Stors marsh nature reserve. The ground quickly becomes muddy in bad weather and the days following the rain. That said, the setting is beautiful along the rock faces. For the rest, it's a fairly easy single.

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Magnificent natural reserve that this marsh of Stors.

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Frequently Asked Questions

What types of natural monuments can I explore around Saint-Prix?

The area around Saint-Prix offers a diverse range of natural monuments, including unique marshlands like the Singletrack along the Marais de Stors, serene forest lakes such as The Blue Lake of Carnelle, and historical natural sites like the Saint Radegonde Fountain. You can also find ancient megalithic structures like the Covered alley and geological sites such as the Auversian Geological Site.

Are there family-friendly natural monuments suitable for children around Saint-Prix?

Yes, several natural monuments are great for families. The Blue Lake of Carnelle is a wonderful spot within the Carnelle forest, offering beautiful scenery with oaks, beeches, and chestnut trees. The Covered alley, a funerary megalith, provides an interesting historical natural monument for families to explore. Additionally, the Auversian Geological Site is being restored for educational purposes and public awareness, making it an engaging visit for all ages.

What historical natural sites can I visit near Saint-Prix?

The region boasts several natural monuments with rich historical significance. The Saint Radegonde Fountain in the Montmorency forest was historically a pilgrimage site, with its water believed to have healing properties. You can also visit the Covered alley, a funerary megalith dating back to the Neolithic period, which is the largest and most famous of its kind in the Paris region. The Auversian Geological Site, an old quarry, also holds historical interest due to its unique geological substrate formed from the famous sands of Auvers.

Where can I find beautiful forest and lake views around Saint-Prix?

For stunning forest and lake views, head to The Blue Lake of Carnelle. This lake, nestled in the Carnelle forest, is known for its deep blue color, attributed to a mixture of gypsum and marl at its bottom. The surrounding oaks, beeches, and chestnut trees create a picturesque setting. Additionally, the Montmorency Forest itself offers extensive green spaces for leisurely walks and enjoying nature.

Are there opportunities for hiking or walking near these natural monuments?

Absolutely. The Montmorency Forest, which hosts several natural monuments, is ideal for walks and hikes. For specific trails, you can explore the hiking routes around Saint-Prix. One notable path is the Singletrack along the Marais de Stors, a bucolic trail running along the Stors marsh nature reserve, featuring beautiful rock faces.

What makes The Blue Lake of Carnelle unique?

The Blue Lake of Carnelle stands out due to its distinctive deep blue color. This hue comes from the unique geological composition of its bottom, which is a mixture of gypsum and marl. Surrounded by a variety of trees like oaks, beeches, and chestnuts, it offers a visually striking natural experience within the Carnelle forest.

What is the significance of the Saint Radegonde Fountain?

The Saint Radegonde Fountain in the Montmorency forest is a historically significant natural monument. It was a popular pilgrimage site between the 15th and 18th centuries, as its water was believed to possess healing properties, particularly for skin ailments. It's a charming and historically rich spot worth visiting.

Can I go gravel biking or running near the natural monuments around Saint-Prix?

Yes, the area around Saint-Prix is well-suited for various outdoor activities. You can find numerous gravel biking routes that take you through the scenic landscapes. For runners, there are also many running trails around Saint-Prix, including routes that pass through the Montmorency Forest and near Lac d'Enghien.

What can I expect when visiting the Singletrack along the Marais de Stors?

The Singletrack along the Marais de Stors offers a bucolic path running alongside the Stors marsh nature reserve. Visitors can enjoy beautiful rock faces and a rich diversity of flora and fauna. Be aware that the ground can become quite muddy after rain, so appropriate footwear is recommended. Despite this, it's generally considered a fairly easy singletrack.

What is the Covered alley and its historical importance?

The Covered alley is a funerary megalith that dates back to the beginning of the Neolithic period. It is renowned as the largest and most famous of all covered alleys in the Paris region, serving as an archetype for burials associated with the Seine-Oise-Marne culture. All its slabs are made of Fontainebleau sandstone, with several outcrops visible on the hillside.

What is the Auversian Geological Site?

The Auversian Geological Site is an old quarry that is currently being restored by the Departmental Council. Its primary interest lies in its unique geological substrate, which was formed from the famous sands of Auvers. It serves mainly for educational purposes and public awareness regarding the region's geological heritage.

What are the general characteristics of the natural environment around Saint-Prix?

The natural environment around Saint-Prix is characterized by its extensive green spaces, notably parts of the Montmorency Forest, which offers ample opportunities for walks and enjoying nature. Nearby, Lac d'Enghien provides additional natural appeal with its landscaped surroundings, offering a peaceful setting for relaxation and various water activities. The area features a mix of forests, lakes, marshlands, and historical natural sites.

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Extend your search for the best caves by checking out these guides of the top ones around Saint-Prix:

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