Best natural monuments around Mours are situated within a picturesque natural landscape, characterized by molasse hills and the Isère Valley. This region offers diverse natural features, from panoramic viewpoints to historically significant geological formations. The area provides opportunities to explore varied terrain and discover sites with cultural ties.
Last updated: June 20, 2026
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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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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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in a beautiful forest we arrive there with a magnificent sun which warms up a little
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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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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 the name of this lake from ancient quarries. The rock at the bottom is a mixture of gypsum and marl. The color is changing due to algae, but originally it is deep blue. Around the lake, one can appreciate oaks, beeches and chestnuts. A feast for the eye!
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The Blue Lake, like the small pond located a few dozen meters away, has been built in old marl quarries, which give the water a bluish color. For this reason, they reach a depth of 20 to 30 m and swimming is prohibited there for safety reasons. On the other hand, you can go fishing there. The ponds have replaced the quarries, and the presence of green marls, which color their bed, explains their astonishing variation in color. Going from turquoise blue to emerald green, depending on the depth, the time of day, the intensity of the light.
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Mours is characterized by its picturesque molasse hills and the Isère Valley. You can discover the Singletrack along the Marais de Stors, a wetland nature reserve with unique flora and fauna. The Blue Lake of Carnelle is another highlight, known for its changing blue color due to gypsum and marl in its rock bed. Additionally, the Saint-Eusèbe hillside offers magnificent panoramic views of the surrounding region, stretching from the Vivarais Mountains to the Pre-Alps.
Yes, Mours features several natural monuments with deep historical roots. The Pierre de Lait Polishing Stone is a Neolithic site where ancient humans sharpened their tools 4500 years ago. You can also visit the Covered alley, a funerary megalith dating back to the beginning of the Neolithic period. On the Saint-Eusèbe hillside, the Cupped Stone, a natural rock formation with cup-like depressions, is believed to have been used for ancient pagan worship and is steeped in local folklore.
Several natural monuments around Mours are suitable for families. The Blue Lake of Carnelle is a family-friendly spot within the Carnelle forest, perfect for a leisurely visit. The Covered alley and the Auversian Geological Site are also categorized as family-friendly, offering educational and engaging experiences for all ages.
The region around Mours offers a variety of outdoor activities. You can find numerous hiking trails, including routes like the 'Pierre de Lait Polishing Stone loop from Champagne-sur-Oise' or 'The Blue Lake of Carnelle – Carnelle's Blue Lake loop from Nointel'. For more options, explore the hiking guide for Mours. There are also road cycling and running routes available, such as those found in the road cycling guide and running trails guide for the area.
The best time to visit depends on your preferred activity. For panoramic views from the Saint-Eusèbe hillside, clear weather is ideal, typically during spring or autumn. If you plan to explore trails like the Singletrack along the Marais de Stors, be aware that the ground can become muddy quickly after rain, so drier periods are recommended.
The Auversian Geological Site is an old quarry currently being restored. Its primary interest lies in its unique geological substrate, formed from the famous sands of Auvers. It serves mainly educational purposes, raising public awareness about the region's geological history.
Yes, the Saint-Eusèbe hillside offers a magnificent panoramic viewing point. From here, you can enjoy expansive, unobstructed views of the surrounding region, including the Vivarais Mountains and the Pre-Alps, providing a great sense of the Drôme region's diverse topography.
The terrain around Mours is varied, featuring molasse hills and valley floors. Trails can range from relatively easy paths, like parts of the Singletrack along the Marais de Stors, to more challenging routes with roots and elevation changes. The molasse hills themselves offer opportunities for hiking with different perspectives of the valley.
Visitors appreciate the diverse landscapes and historical contexts. For instance, the Pierre de Lait Polishing Stone is described as a wonderful site full of emotions, where one can imagine ancient humans. The Blue Lake of Carnelle is praised for its beauty, especially on sunny days when its name truly comes to life, surrounded by oaks, beeches, and chestnut trees.
Yes, the Singletrack along the Marais de Stors runs along the Stors marsh nature reserve. This wetland area is known for its rich flora and fauna, offering a beautiful setting along rock faces. Historically, the name 'Mours' itself is said to evoke the marshes that once existed in the area, particularly along the Savasse River.
For additional information about the village and its attractions, you can visit the Valence Romans Tourisme website: valence-romans-tourisme.com.


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