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Hauts-De-France
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Ostricourt

Top 5 Natural Monuments around Ostricourt

Best natural monuments around Ostricourt showcase a landscape shaped by both its mining heritage and natural reclamation. The area features former industrial sites transformed into natural spaces, alongside ancient forests with historical significance. These sites offer a unique combination of ecological interest and opportunities for recreation. Visitors can explore diverse natural features, from rewilded slag heaps to centuries-old trees.

Best natural monuments around Ostricourt

  • The most popular natural monuments is Leforest slag heap, a natural monument that offers a…

Last updated: July 2, 2026

Ostricourt slag heap

Highlight • Natural Monument

Small slag heap (n ° 120 said Fosse 6 d'Oignies Nord) with a few bumps to have fun at the start, then a long single around the Ostricourt karting. A …

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Leforest slag heap

Highlight • Natural Monument

Small heap around which we will quickly go around. To climb it, favor the climb from the right, because the final descent is very steep and impossible to do in …

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Ladder Tree

Highlight • Forest

Remarkable century-old oak, having participated in the history of the First World War.
It is easily accessible by bicycle.
Which is not the path that goes deep into the forest.

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Roost-Warendin Slag Heap 138

Highlight • Natural Monument

Small heap located near the College of Roost-Warendin. It is less known than its neighbor of the Paturelles (bigger and more fun), but it deserves a trip if you are …

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Terril Estevelles

Highlight • Summit

Beautiful slag heap accessible to the most athletic 3 switchbacks without a plateau to reach the top and admire the beautiful view of the Harnesien and the Carvinois and other summits of the slag heaps that surround it.

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Jean Pierre
April 20, 2025, Terril 138 de Roost-Warendin

beautiful mountain bike playground

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This oak, 200 to 300 years old, would have been used by the German army during the First World War as an observation post. The panel states: "The soldiers could thus observe the artillery and enemy movements. We can still observe some of the iron bars which would have been inserted into the trunk in order to constitute a ladder. The tree having continued to grow, the majority of the bars have been absorbed by the bark."

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Bertrand
September 10, 2023, Terril Estevelles

Be careful on a narrow path, in some places a slippery plastic coating covers part of the path

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Max
March 26, 2023, Arbre à Échelles

Remarkable century-old oak, having participated in the history of the First World War. It is easily accessible by bicycle. Which is not the path that goes deep into the forest.

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good descent followed by fast single

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Mandatory and iconic stopover in the region

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Pierre B
October 28, 2021, Terril de Leforest

Nice place typical of the North. Difficult in gravel in wet weather.

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Difficult to drive on the site at this time because of the "luxuriant" vegetation. Access to the karting level is blocked by padlocked gates.

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Frequently Asked Questions

What unique natural features can I explore around Ostricourt?

The natural monuments around Ostricourt offer a unique blend of industrial heritage and reclaimed nature. You can explore ancient forests like the Bois du Court Digeau, which bears traces of World Wars, and former mining slag heaps such as the Terril Saint-Éloi, where nature has significantly reasserted itself. For a tranquil experience, Le Ratintout provides a peaceful spot for wildlife spotting.

Are there any natural monuments with historical significance in the area?

Yes, the region is rich in history. The Ladder Tree is a remarkable century-old oak that served as a military observation post during the First World War, with visible iron rungs still embedded in its trunk. Additionally, the various slag heaps, like the Terril Saint-Éloi, are poignant reminders of the area's mining past, now transformed into valuable natural spaces.

What kind of wildlife and flora can I expect to see?

At sites like Le Ratintout, you can observe various bird species such as cormorants, grey herons, and grebes, along with blue dragonflies and squirrels. The reclaimed slag heaps, particularly the Terril Saint-Éloi, are known for their rich and ecologically valuable flora, showcasing nature's ability to reassert itself on former industrial landscapes.

Are there family-friendly natural monuments around Ostricourt?

Yes, the Ladder Tree is considered family-friendly and easily accessible. The Bois du Court Digeau also offers gentle paths suitable for family walks, allowing children to explore nature and history in a safe environment.

What are the best natural monuments for challenging climbs or viewpoints?

For a challenging climb and magnificent views, the Leforest slag heap is highly recommended. Its summit offers a great viewpoint, though the very top is only accessible on foot. The Ostricourt slag heap also provides a challenging climb in the middle, followed by a steep descent, with bumps for recreation.

Are there hiking trails near these natural monuments?

Yes, there are several hiking opportunities. The Sentier de l'Arbre Échelle is a 7 km trail that allows you to discover both mining heritage and World War remnants, including the Ladder Tree. You can find more hiking routes, including loops around the Leforest slag heap and the Ladder Tree, in the Hiking around Ostricourt guide.

What other outdoor activities can I do near these natural monuments?

Beyond hiking, the area offers various cycling opportunities. You can explore gravel biking routes, such as the Pévèle greenway, or enjoy touring bicycle paths like the Canal de la Deûle loop. For more details, check out the Gravel biking around Ostricourt and Cycling around Ostricourt guides.

What is the best time to visit the natural monuments around Ostricourt?

The natural monuments can be enjoyed throughout the year. Spring and autumn offer pleasant temperatures for hiking and exploring the diverse flora. Summer is ideal for longer days outdoors, while winter can provide a unique, tranquil experience, especially in the forests and reclaimed slag heaps.

What do visitors enjoy most about the natural monuments around Ostricourt?

Visitors appreciate the unique combination of historical significance and ecological interest. The transformation of industrial landscapes into natural havens, the challenging climbs on slag heaps with rewarding views, and the peaceful wildlife spotting opportunities at places like Le Ratintout are frequently highlighted. The Leforest slag heap, for instance, is praised for its magnificent views.

Are there any natural monuments suitable for mountain biking?

Yes, the Ostricourt slag heap offers a long single track around the karting area with bumps for recreation, making it suitable for mountain biking. The Roost-Warendin Slag Heap 138 is also known as a great mountain bike playground with a labyrinth of narrow singles.

Where can I find information about accessibility or parking for these sites?

While specific parking details vary by site, many natural areas around Ostricourt are accessible by car, often with nearby parking. For instance, the Ladder Tree is easily accessible by bicycle, suggesting good general access. Public transport options may be limited for some more remote natural monuments, so planning ahead is advisable.

Are there other notable slag heaps to explore besides Ostricourt and Leforest?

Yes, beyond the Ostricourt slag heap and Leforest slag heap, you can also visit the Roost-Warendin Slag Heap 138, which is less known but offers a fun mountain bike playground. The Terril Estevelles is another option, offering beautiful views from its summit after a challenging climb.

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