Best natural monuments around Dechy France offer a variety of natural and historical sites to explore. The region features significant ecological areas such as marshlands, peat bogs, and meadows, which are vital for local biodiversity. These natural attractions provide opportunities for appreciating nature and engaging in outdoor activities. The landscape around Dechy is characterized by both natural reserves and historical megalithic structures.
Last updated: June 18, 2026
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beautiful mountain bike playground
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The menhir is located in the marsh of Aubigny-au-Bac, on a footpath leading to Brunémont. It is a block of Landenian sandstone 2.90 m high (including 1.48 m above ground) by 2.15 m wide and 0.70 m thick. It is said to have been sunk to about 2.40 m. Shaped like a horse's head, it is associated with a prehistoric megalith despite the absence of evidence.
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They are part of the unknown treasures of Arras and the Pays d'Artois. The various megalithic sites are good for a beautiful walk, among mysteries and legends, history and extraordinary landscapes. Set sail for the Scarpe valley and the Sensée valley, in the wake of the megaliths of the Pays d'Artois.
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The story goes that once the people of the country showed the scratches produced, according to legend, by the claws of the demon when he seized the stone. Streaks do indeed appear on two sides of the menhir… But are they the same as before or do they come from the destruction of the stone in 1918
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Menhir to discover. A descriptive panel is present at the parking lot of the site. Access is by a grassy path, not dented, practicable.
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Mandatory and iconic stopover in the region
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Menhir part of the local history to discover. Be careful, the place is very swampy and it is more easily accessible in dry weather 😉.
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The area around Dechy offers a diverse range of natural monuments. You can discover significant ecological areas like marshlands and peat bogs, as well as historical megalithic structures such as menhirs and dolmens. Additionally, there are unique slag heaps, which are remnants of industrial activity that have been reclaimed by nature.
Yes, several natural monuments are suitable for families. For instance, The Menhir of Lécluse or the Devil's Stone is categorized as family-friendly and offers an interesting historical site with local legends. Another option is the stone that grows, a magical place in a small clearing that is also considered family-friendly.
Dechy is rich in historical natural monuments, primarily ancient megalithic structures. You can visit The Menhir of Lécluse or the Devil's Stone, a classified historical monument with fascinating legends. Another notable site is the stone that grows, a menhir listed as a historical monument. Don't miss The Big Rock (Menhir of Oisy-le-Verger), an impressive Neolithic menhir with its own devilish legend, or the Hamel Dolmen or the Sorcerers' Kitchen (Pierre Chavatte), one of the rare covered alleys in the Nord region.
The natural monuments around Dechy are excellent starting points for various outdoor activities. You can find numerous routes for road cycling, running, and mountain biking. For example, the MTB Trails around Dechy guide features routes like 'La Fabriq' loop. If you prefer running, explore the Running Trails around Dechy, which includes loops around the Étang de pêche de Dechy. For road cycling, check out the Road Cycling Routes around Dechy for options like the 'Col d'Erchin' loop.
Yes, the region boasts several important natural reserves. The Réserve naturelle régionale du Marais de Wagnonville protects a vital marshland ecosystem, perfect for birdwatching. The Réserve naturelle régionale de la Tourbière de Vred is a rare peat bog, home to specialized flora and fauna. Additionally, the Réserve naturelle régionale du Pré des Nonnettes preserves crucial meadows. These sites offer unique opportunities to appreciate local biodiversity.
Roost-Warendin Slag Heap 138 is a popular natural monument, especially known as a mountain bike playground. It features a labyrinth of single tracks winding through birch trees, offering a fun and challenging experience for cyclists. There's also a very steep climb for those looking for an athletic challenge.
Many natural monuments in the region are steeped in local folklore. The Menhir of Lécluse or the Devil's Stone has tales of the devil's claws and a farmer's pact with Satan. Similarly, The Big Rock (Menhir of Oisy-le-Verger) is linked to a legend of the devil attempting to build a convent overnight. The Hamel Dolmen is also known as the 'Sorcerers' Kitchen' due to its unique cavities, which locals believed were used by sorcerers.
Access varies depending on the specific site. Many natural monuments, especially the megalithic sites, are often found in rural settings and are best reached by car, with parking available nearby. Some, like The Big Rock, can be challenging to access, especially in wet weather due to marshy terrain. For places like the slag heaps, specific trails lead to them. Public transport options might be limited for some of the more remote natural sites, so planning your journey is recommended.
While many natural areas in France are dog-friendly, it's always best to check specific regulations for each site. For natural reserves like the Marais de Wagnonville or the Tourbière de Vred, dogs may need to be kept on a leash to protect wildlife. For trails and general natural monuments, dogs are often permitted if kept under control. Always ensure you clean up after your pet.
Although a bit further from Dechy (about 46 km), the Forest of Mormal is the largest forest in the region. It's significant for its extensive network of trails, offering hundreds of kilometers for hiking, cycling, and wildlife observation. It plays a crucial role in regional air quality and supports a wide variety of woodland species, making it a major natural asset for outdoor enthusiasts.
Visitors appreciate the blend of natural beauty and historical intrigue. Many enjoy the unique experience of exploring sites like Roost-Warendin Slag Heap 138 for its mountain biking opportunities and the sense of discovery in its labyrinthine tracks. The ancient megaliths, such as The Menhir of Lécluse, are valued for their historical significance, the legends surrounding them, and the peaceful walks they offer amidst extraordinary landscapes.
Yes, some natural monuments offer excellent viewpoints. The Menhir of Lécluse or the Devil's Stone is categorized as a summit, suggesting it provides elevated views of the surrounding fields. Additionally, slag heaps like Roost-Warendin Slag Heap 138 often provide good vantage points over the landscape.


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