Mons’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 14

beautiful natural monuments around Mons. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!

Last updated: October 1, 2025

Le Caillou-qui-Bique

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... …

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The bubbling spring of Stambruges and its mysteries.

The closest access to the boiling fountain is from the Hameau des Ecacheries side. At the end of rue du Bosquet, take the dirt road that goes into the forest. …

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Bois d'Angre

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 …

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Jardin du Mayeur

Behind the town hall is the magnificent Jardin du Mayeur. It is the ideal place to enjoy the carillon of the belfry. Le Jardin du Mayeur was created in the …

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Terril du Crachet

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 …

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Trees with mistletoe

The mistletoe is an evergreen semi-parasite on trees, which takes root in the wood of the host. It has leathery opposite leaves.

The white, berry-like fruit is spread by birds. …

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View from Terril No. 6

Charbonnage 6 des Vanneaux. These birds were numerous on the wet meadows which occupied the site before the coal industry. End of exploitation at the end of the 1940s.

Marcasse nature reserve and surroundings.

cirkwi.com/fr/point-interest/906668-terril-n-6

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The Neolithic Menhir

By definition, a menhir is a vertical standing stone during the Neolithic era. The menhir of Saint-Symphorien, 2m50 high, 1m30 wide, weighing 2500 kg, also served as a Neolithic ribbon …

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View from Terril de l’Héribus

Among the numerous slag heaps, the one at Héribus in Cuesmes is definitely worth a visit. Your calves will have known it, but what a walk!

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Former Frédéric coal mine (Machine à feu)

Behind the wall, the old pit of the Great Fire Engine.

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Didn’t find what you were looking for?

Find even more amazing natural monuments around Mons by checking out the top Highlights region by region:

Dour Frameries Boussu Honnelles Quévy Colfontaine Jurbise Hensies Quiévrain Lens Saint-Ghislain Quaregnon

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

Schelde Ath Soignies Thuin Charleroi Tournai

The Top 14 Natural Monuments around Mons

Le Caillou-qui-Bique

The bubbling spring of Stambruges and its mysteries.

Bois d'Angre

Jardin du Mayeur

Terril du Crachet

Trees with mistletoe

View from Terril No. 6

The Neolithic Menhir

View from Terril de l’Héribus

Former Frédéric coal mine (Machine à feu)

Other adventures around Mons

Most popular routes around Mons

Most popular attractions around Mons

Get inspired with the komoot mobile app

Didn’t find what you were looking for?

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