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Hauts-De-France
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Grenay

Top 6 Natural Monuments around Grenay

Best natural monuments around Grenay are shaped by the region's industrial past and subsequent ecological reclamation, offering diverse natural landscapes. The area features former mining slag heaps that have transformed into biodiversity hotspots and recreational areas. Grenay also provides traditional forest experiences. Visitors can explore 6 natural monuments, showcasing a blend of human history and natural resilience.

Best natural monuments around Grenay

  • The most popular natural monument is Loos-en-Gohelle slag heap, a natural monument that is the highest in…

Last updated: June 21, 2026

Vimy Ridge Shell Craters

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The Battle of Vimy Ridge (April 9-12, 1917)

This is one of the most famous battles for Canadians during the First World War.
Vimy Ridge was a strategic position fortified …

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Passage dolmen: The Fairy Table

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More than 4000 years old, is the sole survivor of a gigantic megalithic complex, unfortunately dismantled in the 19th century. Originally, this set was made up of:
– 4 dolmens, …

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Vimy Foundation Centennial Park

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Vimy Foundation Centennial Park

Vimy Foundation Centennial Park offers visitors a unique and reflective space to reflect on the horrors that occurred on these lands during the Great War, contrasting …

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Loos-en-Gohelle slag heap

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Don't miss the Loos-en-Gohelle slag heap, an astonishing and unusual spectacle. There are five hills made of coal waste, and this one is the highest, reaching 146 meters, the highest …

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Spoil heaps 74 and 74a

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Great place, nice climb and a breathtaking view once at the top !!

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rustang75
October 19, 2025, Terril de Loos-en-Gohelle

Beautiful panoramic view of Lens and the surrounding area. Be careful when you climb onto the spoil heap during a storm, it's a real hair-raiser!

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The Battle of Vimy Ridge (April 9-12, 1917) This is one of the most famous battles for Canadians during the First World War. Vimy Ridge was a strategic position fortified by the Germans since 1914. In April 1917, the four Canadian divisions, united for the first time, attacked to retake it. - 💥 The bombardments that created the shell holes Before the assault For several weeks, Allied artillery (mainly British and Canadian) bombarded the German positions to weaken the defenses, cut the barbed wire, and destroy the enemy trenches. It is estimated that more than a million shells were fired in preparation for the attack. During the attack On April 9, 1917, the Canadian infantry advanced under a creeping barrage, that is, artillery fire that advanced just ahead of the soldiers to protect their advance. Result These intense bombardments literally riddled the ridge with craters. Each shell exploding in the ground dug a hole of varying width (depending on the caliber, often between 1 and 5 meters in diameter). 🏞 After the War Why are the shell holes still there? After 1918, it was decided to preserve certain areas as they were, particularly around the future memorial, to demonstrate the scale of the fighting. The land was therefore not leveled or cultivated, unlike other areas of the front, which reverted to agricultural fields. A Landscape for Remembrance The shell craters, reconstructed trenches, and replanted trees (each tree represents a killed Canadian soldier) create a living memorial park, keeping the scars of the conflict visible for future generations.

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Vimy Foundation Centennial Park Vimy Foundation Centennial Park offers visitors a unique and reflective space to reflect on the horrors that occurred on these lands during the Great War, contrasting with the solemnity and grace of the adjacent Canadian National Memorial. The main attraction of the four-acre park is 100 Vimy Oak trees, grown from acorns collected on the battlefield in 1917, along with the Borden bugle, the Centennial Flagpole, and 360-degree memorial views of the First World War battlefield. One hundred years after the war, the Park ensures that we never forget the sacrifice of all those who served our country. The Vimy Foundation The Vimy Foundation is a national charitable organization whose mission is to preserve and promote Canada's legacy of the First World War, symbolized by the victory at Vimy Ridge in April 1917. This momentous event is widely considered a pivotal moment in our history, Canada's first steps onto the world stage. Through youth education programs, awareness campaigns, and legacy projects, including the new Vimy Visitor and Education Centre and Centennial Park, the Vimy Foundation provides Canadians with opportunities to learn how the First World War transformed our nation. Vimy Oaks The park's oak trees are directly descended from acorns collected on the Vimy Ridge battlefield by a Canadian soldier, Lieutenant Leslie Miller of Scarborough, Ontario, and later planted on his farm in Canada, which he named The Vimy Oaks. A number of these majestic oaks are still alive today in Canada, while virtually none of the Vimy Ridge oaks survived the First World War. The Vimy Oaks Legacy Society, a Canadian non-profit volunteer association, was created to repatriate young Vimy oaks descended from acorns collected after the battle. Volunteers landscaped and planted these repatriated Vimy oaks, which now stand guard in this park adjacent to the Canadian National Vimy Memorial.

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it's written like that on the sign

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legend of the fairies who dance around the dolmen

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This site is part of the unknown treasures of the Land of Artois. The various megalithic sites are good for a beautiful walk, among mysteries and legends, history and extraordinary landscapes

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Don't miss the Loos-en-Gohelle slag heap, an astonishing and unusual spectacle. There are five hills made of coal waste, and this one is the highest, reaching 146 meters, the highest in Europe! Hike to the top and admire the views. You can see how nature has transformed the hills with plants, animals and even grapes. Take the opportunity to learn about this UNESCO World Heritage site and discover its rich history and culture at Base 11/19.

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A must see if you are in the area.

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Frequently Asked Questions

What unique natural features can I explore around Grenay?

The Grenay area is characterized by its unique 'terrils' or spoil tips, which are artificial hills formed from mining waste that have been reclaimed by nature. The most prominent is the Loos-en-Gohelle slag heap, the highest in Europe at 146 meters, offering panoramic views and a fascinating example of ecological succession. You can also explore Spoil heaps 74 and 74a, which are popular for mountain biking and offer great vistas.

Are there any historical natural monuments in the Grenay area?

Yes, the region blends natural and historical significance. The Passage dolmen: The Fairy Table is an ancient megalithic complex over 4000 years old, representing a unique historical natural formation. Additionally, the Vimy Ridge Shell Craters are a poignant natural monument, a landscape shaped by World War I bombardments and preserved for remembrance.

What are some family-friendly natural monuments to visit near Grenay?

For families, the Vimy Ridge Shell Craters offer a thought-provoking experience with historical context. Nearby, the Vimy Foundation Centennial Park is also family-friendly, providing a reflective space with unique Vimy Oak trees and memorial views of the battlefield.

Can I go hiking or cycling near the natural monuments in Grenay?

Absolutely! The natural monuments around Grenay are excellent starting points for outdoor activities. You can find numerous routes for cycling, mountain biking, and running. For detailed cycling routes, check out the Cycling around Grenay guide. If you prefer mountain biking, explore the MTB Trails around Grenay. For runners, there are various options in the Running Trails around Grenay guide.

What makes the slag heaps (terrils) around Grenay significant?

The slag heaps, or 'terrils,' are significant because they are a defining feature of the Nord-Pas-de-Calais mining basin, recognized as a UNESCO World Heritage site. They represent a unique blend of industrial history and natural reclamation. Over time, these artificial hills have developed distinct ecosystems, becoming biodiversity hotspots. The Loos-en-Gohelle slag heap, for instance, is the highest in Europe and showcases how nature reclaims industrial landscapes.

Are there viewpoints offering panoramic views of the region?

Yes, several natural monuments provide excellent panoramic views. The summit of the Loos-en-Gohelle slag heap offers breathtaking vistas of Lens and the surrounding area. Similarly, Spoil heaps 74 and 74a also provide great views from their tops after a rewarding climb.

What kind of terrain can I expect when visiting these natural monuments?

The terrain varies. For the slag heaps like Loos-en-Gohelle and Spoil heaps 74 and 74a, expect moderate to intermediate climbs on paths made of coal waste, which can be steep but offer rewarding views. Areas like the Vimy Ridge Shell Craters feature uneven ground with preserved craters and trenches, while the Passage dolmen is generally on more level ground, suitable for walking.

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

Visitors frequently highlight the unique blend of history and nature. They appreciate the panoramic views from the top of the slag heaps, the historical significance of sites like the Passage dolmen and Vimy Ridge, and the opportunity to witness nature reclaiming industrial landscapes. The challenging climbs on the terrils are often mentioned as rewarding, especially for mountain bikers.

Are there other natural areas to explore in the broader Hauts-de-France region?

While Grenay's immediate natural monuments are unique, the broader Hauts-de-France region offers several regional natural parks. These include the Parc Naturel Régional Scarpe-Escaut with its forests and peat bogs, the Parc Naturel Cap et Marais d'Opale known for its coastal cliffs and dunes, and the Avesnois Regional Nature Park with its diverse landscapes. These parks provide extensive opportunities for exploring the region's natural heritage. You can learn more about these parks on the Hauts-de-France Tourism website.

Is public transport available to reach these natural monuments?

While Grenay itself is a smaller town, public transport options exist in the wider region. For specific natural monuments, it's advisable to check local bus routes or regional train services that might connect to nearby towns. However, for maximum flexibility in exploring the various sites, especially the more remote ones, driving is often recommended. Parking is generally available near the main access points for popular sites like the slag heaps and Vimy Ridge.

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

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