Best natural monuments around Gerpinnes include a variety of natural and historical sites within this Belgian municipality in Hainaut. The region is characterized by its significant natural heritage, including protected areas and unique geological features from the Devonian and Carboniferous periods. These landscapes offer opportunities for nature walks and appreciation of local ecosystems. Gerpinnes provides a blend of ecological and scenic value for visitors.
Last updated: May 17, 2026
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very nice view
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superb view
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The Saracens Cave (or Hole) is located on the right bank of the Fond des Haies stream. There are several entrances, but access is narrow and limited. It is far less impressive than some of the caves in the Ardennes or Namur region, but it still has its charm. The small paths leading to it can be dangerous without sturdy footwear or in wet weather.
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The Aulniats slag heap is an elongated and flat slag heap, with an unstructured look that culminates at 186 m. Its abundant vegetation, its viewpoints over the Sambre valley and its small "canyon" colored with reddish hues by the combustion of the shales are all discoveries that will punctuate your walk on the slag heap. Witness to the activity of the last Walloon coal mine, the Aulniats slag heap is an invitation to a bucolic outing for the whole family. It conceals so many unsuspected treasures! Thus, lovers of mining remains will be pleasantly surprised to discover industrial structures at its foot. Budding geologists will scrape the surface of the slag heap to discover the reddish shales, witnesses of the self-combustion of the slag heap. These red shales were also exploited until 2001 as backfill, in particular to stabilize the runway at Charleroi airport. As for photographers, they will enjoy the exceptional panorama offered by its summit plateau! Hikers, for their part, will be delighted to walk in an environment of high quality flora and fauna. A pedestrian connection is possible with the slag heap n°7 of the Gouffre located a few cables away.
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On the right side of the path, trees of twelve different species have been planted in memory of the 262 miners, of twelve nationalities, who perished in the Bois du Cazier disaster on August 8, 1956.
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The Saint-Charles Sud slag heap, entirely wooded, has been converted into a place of discovery and relaxation. It adjoins the Bois du Cazier site, where the biggest mining disaster in the history of Belgium took place on the morning of August 8, 1956. The summit hosts a panoramic observatory on the region, at nearly 250 meters above sea level. A path has been laid out to facilitate the ascent of the slag heap. Source: charleroi-decouverte.be | Terril Saint-Charles South / F. Dierick
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Nice view and nice city park on a slag heap.
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Gerpinnes offers a blend of natural and man-made natural monuments. You can explore unique features like the Passage through the Aulniats spoil tip via the GR, which features abundant vegetation, viewpoints over the Sambre valley, and reddish shales from past combustion. Another interesting site is the Piges Spoil Tip, known for its conical shape, tree-lined mantle, and wild orchids, offering a unique view of Charleroi.
Yes, several natural monuments around Gerpinnes have significant historical connections. The View from Terril Saint-Charles Sud (Bois du Cazier) is an entirely wooded slag heap adjoining the Bois du Cazier site, famous for a major mining disaster. Similarly, the Path of the Trees of the Twelve Nationalities is a memorial trail where trees of different species commemorate the miners who perished in the Bois du Cazier disaster.
The landscapes around Gerpinnes are diverse, featuring former industrial sites transformed into natural spaces. You'll find wooded slag heaps offering panoramic views, such as the View from Terril Saint-Charles Sud. There are also protected woodlands, natural gardens like the Gerpinnes Natural Garden showcasing local flora and fauna, and areas with geological heritage from the Devonian and Carboniferous periods, contributing to varied terrain with sandstones, limestones, and shales.
Near the natural monuments in Gerpinnes, you can enjoy various outdoor activities. There are numerous routes for cycling, running, and mountain biking. For cycling, consider routes like the "Château d'Acoz – Sainte Rolande Oak loop from Gerpinnes." Runners might enjoy the "Bois du Cazier Mining Site – Duck Island loop." Mountain bikers have options such as the "Bois de Jamioulx loop from Nalinnes." You can find more details on these activities in the cycling, running, and MTB guides for Gerpinnes.
Yes, many natural monuments are integrated into hiking experiences. For instance, the Passage through the Aulniats spoil tip via the GR is part of a long-distance hiking trail, offering a bucolic outing. The Saint-Théodore Spoil Tip also provides an intermediate hiking experience. Additionally, the region features an Eco-pedagogical Path and various walks through orchards and protected woodlands.
Absolutely. The Passage through the Aulniats spoil tip via the GR is described as an invitation to a bucolic outing for the whole family, with discoveries like a small 'canyon' and industrial structures. The Path of the Trees of the Twelve Nationalities is also considered family-friendly, offering an educational walk through the forest.
The natural monuments around Gerpinnes, with their diverse flora and outdoor trails, are generally best enjoyed during spring, summer, and early autumn. During these seasons, the weather is more favorable for hiking, cycling, and exploring the natural gardens and wooded areas. Spring brings blooming wild orchids on sites like the Piges Spoil Tip, while autumn offers beautiful foliage.
The natural monuments offer a range of experiences for different fitness levels. Some, like the Aulniats spoil tip, are suitable for a family outing. Others, such as the Saint-Théodore Spoil Tip and the ascent to the View from Terril Saint-Charles Sud, are categorized as intermediate or challenging due to climbs, but paths are often laid out to facilitate the ascent.
Visitors particularly enjoy the panoramic views offered from the summits of the transformed slag heaps, such as the exceptional panorama from the Aulniats slag heap and the Terril Saint-Charles Sud. The rich flora and fauna, the educational aspects of sites like the Gerpinnes Natural Garden, and the historical context of places like the Path of the Trees of the Twelve Nationalities are also highly appreciated.
Yes, the Gerpinnes Natural Garden is specifically designed to showcase local plant species. It features various biotopes, and plants are identified with information about their culinary, medicinal, melliferous, or ornamental uses. This garden provides a unique opportunity to learn about the region's rich biodiversity in an educational setting. More information can be found on the Visit Wallonia website.
Yes, Gerpinnes has several protected natural areas. The Valley of the little stream Haies and the Woodlands of the forest "Bois de Roumont" are recognized as protected heritage sites, indicating their ecological importance and scenic value. These areas offer opportunities for nature walks and appreciating local ecosystems. You can find more details on protected sites via Wikipedia.


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