Natural monuments around Erre feature a landscape shaped by both natural processes and historical mining activities. The region is characterized by unique natural features such as subsidence ponds and former slag heaps, which have evolved into significant ecological sites. These areas offer diverse terrain, including forests, marshes, and elevated viewpoints. Erre's natural monuments provide opportunities to explore varied natural environments.
Last updated: July 2, 2026
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You can enjoy this site composed of several natural and artificial ponds. It is a rich natural environment with a birch forest. There are many rare plant species and the European nightjar frequents the site during the nesting period.
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You can enjoy this site composed of several natural and artificial ponds. It is a rich natural environment with a birch forest. There are many rare plant species and the European nightjar frequents the site during the nesting period.
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Very mobile with magnificent view of the gorial pond
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The Goriaux pond (former pig pond as its dialect name indicates) is a mining subsidence pond in the North, in France, and a national biological reserve since 1982. A very significant mining subsidence created three ponds in 1916, which ended up joining around 1930 to form a single pond, located at the foot of slag heap no. 171, Mare à Goriaux, partly recolonized by vegetation. The site of the body of water and the slag heap of the pond in Goriaux is part of the Raismes-Saint-Amand-Wallers national forest.
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Nice spot, possibility to land, soak your feet in the water. Not far from the Arenberg gap. Accessible slag heap along the Mate in Goriaux which gives a view from above. Be careful, very narrow and sloping path if you want to go along the pond on the slag side.
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fairly steep climb but not too high (40m D +)
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Heap and nice natural area with schist tracks. Accessible by mountain bike and gravel. Possibility of reaching the top, which is not very high, but which allows to have a panoramic view of the surroundings.
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Accessible by gravel if you follow the trail. Please note that the entrance on the Bruille lez Marchiennes side has been blocked off to prevent the passage of cars. it will be necessary to climb some rocks to pass.
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The natural monuments around Erre are characterized by a landscape shaped by historical mining activities. You'll find unique features such as mining subsidence ponds, which have become significant ecological sites, and former slag heaps that now offer elevated viewpoints. These areas also include diverse terrain like forests and marshes.
Yes, several natural monuments around Erre are suitable for families. Both Goriaux Pond and Germignies Marsh and Spoil Heap are categorized as family-friendly. Goriaux Pond offers opportunities to access the water, while Germignies Marsh features natural and artificial ponds within a rich natural environment and birch forest.
Many natural monuments around Erre offer excellent viewpoints. Goriaux Pond provides views from its associated slag heap. Terril des Argales features a slag heap that gives unobstructed views of the region, and Terril de Roeulx has an accessible summit offering a panoramic view of the surroundings.
Yes, the natural monuments, particularly those with ecological significance, offer chances for wildlife observation. Terril des Argales includes a pond that serves as an ornithological reserve. Similarly, Germignies Marsh and Spoil Heap is a rich natural environment known for rare plant species and is frequented by the European nightjar during nesting season.
The area around Erre offers various cycling opportunities. You can find numerous routes for road cycling, general cycling, and gravel biking. For detailed routes and guides, explore the Road Cycling Routes around Erre, Cycling around Erre, and Gravel biking around Erre guides.
Yes, some natural monuments offer trails. Terril de Roeulx features schist tracks and is accessible by mountain bike and gravel, with a relatively steep but short climb to the top. Terril 125 of Sainte-Marie also has trails, with a small part accessible by bicycle, though some rocks may block motor vehicles.
Visitors frequently highlight the unique blend of natural beauty and industrial heritage. They appreciate the panoramic views from the slag heaps, the tranquility of the ecological reserves like Goriaux Pond and Terril des Argales, and the diverse terrain for outdoor activities. The area is also valued for its rich biodiversity, including rare plant species and birdlife.
Yes, some natural monuments are accessible by bicycle. For instance, Terril de Roeulx has schist tracks suitable for mountain bikes and gravel bikes. A small part of Terril 125 of Sainte-Marie is also accessible by bicycle, though you might encounter rocks blocking motor vehicle access.
Goriaux Pond is a national biological reserve. While it offers nice views and opportunities to access the water, be aware that the path along the pond on the slag side can be very narrow and sloping. It's a significant mining subsidence pond that formed from three smaller ponds joining together.
Terril des Argales features a pond that is an ornithological reserve, offering a pleasant layout for exploration. The slag heap provides unobstructed views of the region. However, visitors have noted that gases and smoke can occasionally escape from the slag heap due to internal combustion, so be mindful of this.
The provided information does not indicate that specific permits are required for general access to the natural monuments mentioned, such as Goriaux Pond or the various Terrils. However, it's always advisable to check local regulations or official websites for any specific rules regarding protected areas or activities like fishing or drone usage, if applicable.
While the guide highlights popular spots, Germignies Marsh and Spoil Heap could be considered a hidden gem for those interested in rich biodiversity. It's a site composed of multiple natural and artificial ponds, a birch forest, and is home to rare plant species and the European nightjar, offering a unique natural environment to explore.


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