Best natural monuments around Taisnières-sur-Hon include unique geological formations and diverse natural landscapes. This commune in the Nord department of France is situated near the Avesnois Nature Park, characterized by its bocage landscape and the Hogneau River. The region offers a blend of natural features and local folklore, providing varied outdoor activities.
Last updated: May 20, 2026
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like a little trip to the moon...
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The Bois d'Angre, located in Honnelles, is a forest renowned for the Caillou-qui-Bique, a 370 million year old pudding rock. This forest is home to rich biodiversity with oaks, ash trees and various rare species. A place of legends and hikes, the Angre woods is a precious natural site in Wallonia, managed by Natagora and other organizations to preserve its unique fauna and flora.
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This rock formation is very special in the forest!
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This is a summit climb. Especially on the adventurous side. There are ropes there to hoist you up. The other side is a nice wide walking path. In my opinion, the most beautiful slag heap on the GR 412.
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The Crachet slag heap is a Site of Great Biological Interest (SGIB). It is also part of the Natura 2000 network to protect its exceptional fauna and flora. Located a stone's throw from the SPARKOH science museum! (former PASS), the slag heap is a fabulous educational tool which regularly welcomes school visits but also families looking for calm and nature. Thanks to its marked and well-equipped paths with stairs, small bridges, duckboards and ropes, its ascent is easy despite a difference in altitude of around 70 m. Relatively wooded, the Crachet sometimes gives way to magnificent grassy wastelands and a few ponds which encourage the development of great biodiversity. Its summit, located at an altitude of 140 m, offers a beautiful panoramic view of the Borinage slag heap range as well as the SPARKOH! site, built by the architect Jean Nouvel. In this place, the ground is adorned with red and black. Smoke can even be observed in certain places because the heap is still burning more than 60 years after the closure of the site. coal mining. https://www.destinationterrils.eu/nl/terril-du-crachet
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A legend has been perpetuated for generations on this 25 meter high stone planted on a ridge (in patois we say that it rocks). A little step back in time... Saint-Ghislain completes the construction of its abbey. The devil decides that he will take advantage of the inauguration day to destroy the abbey and its occupants, by throwing an enormous stone found in the Pyrenees at the community. An angel warns Saint-Ghislain of the imminent danger weighing on the abbey. He gathers as many pairs of worn shoes as possible, which he slips into a huge bag and takes to the road to meet the evil one. Coming across a poor fellow in rags with holes in his shoes at this place, the devil, quite exhausted by the heavy load, questions him: “Is the abbey of Saint-Ghislain still far away? ". - “I’m coming from there, if it’s far!” » replies the old man while emptying his bag, filled with threadbare shoes, in front of the devil. Discouraged and disappointed, Satan preferred to give up, dropping his heavy stone on the ground and walking away blaspheming, fooled by the subterfuge. An hour and a half. N.B.: some historians say that this is the legend of Saint Remacle, during the construction of Stavelot Abbey. You are therefore free to substitute Remacle for Saint-Ghislain since this substitution does not modify the spirit of the story. In both cases, the devil is defeated. Cfr de informatiesteen ter hoogte van Le Chalet de Garde.
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The Bois d'Angre or Bois du Caillou-qui-bique is a Belgian forest located in Angre in the commune of Honnelles in the Walloon region, on a private plot. It is particularly known for its "poudingue" (hard rock sediment), 370 million years old, 25 meters high, whose shape is reminiscent of a human face. He is also said to have inspired the poet Émile Verhaeren. https://fr.wikipedia.org/wiki/Bois_d%27Angre
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Bois d'Angre is one of the undivided forests of Hainaut managed jointly by the Province of Hainaut, the Walloon Region and the municipality of Honnelles. It offers several walks to discover its mineral, plant and animal riches. https://www.itinari.com/fr/location/bois-d-angre
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The most prominent geological feature is Le Caillou-qui-Bique, a 25-meter high stone uniquely perched on a ridge. This natural monument is composed of fragments of several natural elements and is steeped in local legend.
Yes, Le Caillou-qui-Bique is famously associated with a local legend involving Saint Ghislain (or Saint Remacle) and the Devil. The story tells of the Devil dropping the massive stone after being tricked, leaving it in its current precarious position.
You can explore the Bois d'Angre, a forest known for its rich biodiversity and as the location of Le Caillou-qui-Bique. The wider region is also home to the Avesnois Nature Park, characterized by its bocage landscape, and the vast Forest of Mormal, offering extensive trails.
Absolutely. The Crachet slag heap is a notable example, now recognized as a Site of Great Biological Interest. Its summit provides panoramic views of the surrounding landscape and the Borinage slag heap range. Another is Terril Saint-Antoine, a large slag heap offering unique terrain.
The area offers diverse outdoor activities. You can find numerous hiking trails, such as 'The Chapels Route of Houdain' or a 'Hiking loop from Taisnières-sur-Hon'. There are also options for gravel biking and mountain biking, with routes like 'Trails of Bois d'Angres' or 'Colfontaine Wood – Terril du Grand Bouillon loop'. For more details, explore the hiking guide, gravel biking guide, and MTB trails guide for the region.
Yes, the Bois d'Angre is considered family-friendly, offering various walks to discover its rich biodiversity. The Crachet slag heap also has marked and well-equipped paths, making its ascent relatively easy for families.
For excellent panoramic views, head to the summit of the Crachet slag heap, which sits at an altitude of 140m and overlooks the Borinage slag heap range. The Terril Saint-Antoine also offers great viewpoints.
The best time to visit for outdoor activities like hiking and exploring the natural monuments is generally during spring, summer, and early autumn when the weather is mild and the natural landscapes are vibrant. These seasons offer comfortable conditions for walking and enjoying the views.
Beyond the diverse flora of the Bois d'Angre, you might encounter trees adorned with mistletoe. This evergreen semi-parasite is notable for its leathery leaves and white, berry-like fruit, and is often associated with symbols of fertility and love.
For those seeking a challenge, the Crachet slag heap offers a summit climb with a difference in altitude of around 70m, featuring marked paths, stairs, and even ropes in some sections for an adventurous ascent. The Terril Saint-Antoine is also categorized as challenging in some parts.
The terrain varies from the gentle paths within forests like Bois d'Angre to the more rugged and elevated landscapes of the reclaimed slag heaps. For instance, the Crachet slag heap involves an ascent of about 70m, with paths that can be relatively wooded or open to grassy wastelands.
Visitors appreciate the unique blend of natural beauty and local folklore, especially at sites like Le Caillou-qui-Bique. The panoramic views from the slag heaps and the rich biodiversity of the forests are also highly valued, as evidenced by over 220 upvotes and 70 photos shared by the komoot community.


Extend your search for the best caves by checking out these guides of the top ones around Taisnières-Sur-Hon: