Best natural monuments around Saint-Joseph offer diverse natural landscapes and geological formations. The region features 6 natural monuments, including summits, protected areas, and unique rock formations. These sites provide opportunities to observe the area's geography and natural environment.
Last updated: May 7, 2026
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Be careful, some sections are really difficult to pass, you will have to push the bike. Some single sections overlook a river.
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Landscaped summit (accessible on foot) commemorating the locations of the geographer César-François Cassini de Thury between 1758 and 1761.
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The Roches de Marlin, also called “Devil’s Stones”, are located at an altitude of 1,370 meters and offer a breathtaking view of the Gier valley. At the origin of very ancient and mysterious stories, they are one of the best-known megalithic sites in the Pilat region.
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Located on a plateau at an altitude of 330 meters, the Montagny meadows and moors area was protected in 1993 in order to preserve the integrity of biological balances and prevent the disappearance of animal and plant species. Nine remarkable bird species, three invertebrate species, nine plant species and one European amphibian (great crested newt) live in this environment. Note that mountain biking off the trails is prohibited in this area.
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The Signal de Saint André, at an altitude of 934m, is one of the highest points of the Monts du Lyonnais. At the top, accessible on foot via a small path, a belvedere allows you to enjoy a view overlooking the Valley.
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The Crêt Malherbe is the highest point of the Monts du Lyonnais with an altitude of 943 meters (only 934 meters for the Signal de Saint André).
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View of the Rhone at the feet of the Madonna of the Croix-Régis.
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You can discover the intriguing Les Roches de Marlin, also known as “Devil’s Stones.” Located at an altitude of 1,370 meters in the Pilat region, these megalithic sites offer breathtaking views of the Gier valley and are steeped in ancient, mysterious stories.
Yes, the Prairies and Heathlands of Montagny (Protected Area) is a significant site. Situated on a plateau at 330 meters, this area was protected to preserve its biological balance and prevent the disappearance of various animal and plant species, including nine remarkable bird species and a European amphibian.
The highest point in the Monts du Lyonnais is Crêt Malherbe, reaching an altitude of 943 meters and offering expansive views. Another prominent summit is Le Signal de Saint André, at 934 meters, which features a belvedere with views overlooking the Valley and commemorates historical geographical surveys.
The Prairies and Heathlands of Montagny (Protected Area) is considered family-friendly. Its accessible plateau setting and focus on preserving diverse flora and fauna make it an educational and enjoyable destination for families.
Many natural monuments offer stunning panoramic views. From Le Signal de Saint André, you can enjoy a wide view overlooking the Valley. Les Roches de Marlin provide breathtaking vistas of the Gier valley. Additionally, Madonne de la Croix-Régis offers views of the Rhone.
The region around Saint-Joseph is excellent for various outdoor activities. You can find numerous routes for cycling, road cycling, and mountain biking. These guides offer routes of varying difficulties, allowing you to explore the natural beauty of the area.
Yes, Le Signal de Saint André is a historical site. Its landscaped summit commemorates the locations of the geographer César-François Cassini de Thury's surveys between 1758 and 1761. The ancient Les Roches de Marlin are also known for their very ancient and mysterious stories, being one of the best-known megalithic sites in the Pilat region.
While many sites are accessible, some, like Madonne de la Croix-Régis, have sections that can be quite challenging, requiring you to push your bike. For the Prairies and Heathlands of Montagny, mountain biking off designated trails is prohibited to protect the natural environment.
Visitors appreciate the diverse natural landscapes, from high-altitude viewpoints to biologically significant protected areas. The opportunity to observe unique geological formations and the rich biodiversity, especially at sites like the Prairies and Heathlands of Montagny, is highly valued. The panoramic views from summits like Le Signal de Saint André are also a major draw.
While all natural monuments offer a sense of tranquility, the Les Roches de Marlin, with their ancient history and location in the Pilat region, might offer a more secluded experience compared to the more frequently visited summits, providing a unique blend of natural beauty and historical intrigue.
In the Prairies and Heathlands of Montagny (Protected Area), you can observe a rich variety of wildlife. This protected environment is home to nine remarkable bird species, three invertebrate species, nine plant species, and the European great crested newt, making it a significant spot for nature observation.


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