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Coulouvray-Boisbenâtre

Top 5 Natural Monuments around Coulouvray-Boisbenâtre

Best natural monuments around Coulouvray-Boisbenâtre include a variety of natural features and geological formations. The area is situated near the Forest of Saint-Sever, offering a significant natural setting for exploration. Local geology is characterized by granite outcrops, historically important for the region's past. These natural features contribute to a diverse landscape, providing opportunities for outdoor activities.

Best natural monuments around Coulouvray-Boisbenâtre

  • The most popular natural monuments is Lac du Gast, a lake that serves as a 66-hectare drinking water…

Last updated: July 4, 2026

Lac du Gast

Highlight • Lake

This drinking water reserve, located 2 km from the source of the Sienne, covers 66 hectares. About 16,000 m3 of water are withdrawn every day to meet the demand for drinking water.

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Hameau Les Nouettes

Highlight • Natural

There, the meadows are dotted with granite balls called "oxen". Large granite blocks with rounded shapes outcrop there. They result from the weathering of the granite into balls under the action of infiltration water.

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Ornithological Reserve

Highlight • Lake

the ornithological reserve of 4 hectares is of remarkable interest thanks to many species nesting in the wetlands: great crested grebe, little grebe, mallard duck, coot, lesser plover or even …

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Étang de Coulanges

Highlight • Lake

Well hidden in the forest of Saint-Sever, between the Tranchée de la Garde Bourgeoise and the
Vissière forest road, the Coulanges pond is only accessible on foot or by mountain …

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Granite Route

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Today, only one quarry still extracts the “Bleu de Vire” granite. It is used to produce cobblestones for pedestrian areas in cities, tombstones for funerary monuments and for high technology …

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Tips from the Community

Louis Werner 🦅
October 3, 2023, Lac du Gast

Super cool for a break

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Binoculars are recommended

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Great habitat for waterfowl. Binoculars are worth it!

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JMTVTT
November 21, 2022, Lac du Gast

we really liked this passage in osmosis with nature, trees, rock, really beautiful....👏😉👍

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There, the meadows are dotted with granite balls called "oxen". Large granite blocks with rounded shapes outcrop there. They result from the weathering of the granite into balls under the action of infiltration water.

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Today, only one quarry still extracts the “Bleu de Vire” granite. It is used to produce cobblestones for pedestrian areas in cities, tombstones for funerary monuments and for high technology (space conquest, robotics). Hikers will encounter pierced granite stones along this route.

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Well hidden in the forest of Saint-Sever, between the Tranchée de la Garde Bourgeoise and the Vissière forest road, the Coulanges pond is only accessible on foot or by mountain bike. If fishing is prohibited there, a dike makes it possible to retain the water and to obtain a beautiful view of the body of water. A forest shelter and a picnic area have been set up to take advantage of this haven of peace.

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the ornithological reserve of 4 hectares is of remarkable interest thanks to many species nesting in the wetlands: great crested grebe, little grebe, mallard duck, coot, lesser plover or even the reed bunting. Three observatories have been installed on the edge of the lake to better admire these birds without disturbing them.

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Frequently Asked Questions

What unique natural features can I find around Coulouvray-Boisbenâtre?

The region is known for its distinctive granite formations, such as the rounded granite balls called "oxen" found at Hameau Les Nouettes and The Bœufs of the Croix Denise. You can also explore lakes like Lac du Gast, a significant drinking water reserve and bird habitat, and the secluded Étang de Coulanges within the Forest of Saint-Sever.

Are there opportunities for birdwatching near Coulouvray-Boisbenâtre?

Yes, the region offers excellent birdwatching opportunities. Lac du Gast is a 66-hectare drinking water reserve that serves as a habitat for various waterfowl. Additionally, a 4-hectare Ornithological Reserve nearby is managed by the Norman Ornithological Group and is home to 86 identified bird species, making it an ideal spot for observing local birdlife.

What kind of historical or geological insights can I gain from visiting the natural monuments?

The area has a rich geological history, particularly concerning granite. The Granite Route highlights the historical extraction of "Bleu de Vire" granite, which was used for various purposes, including cobblestones and monuments. You can see large granite blocks resulting from natural weathering at sites like Hameau Les Nouettes and The Bœufs of the Croix Denise. The nearby town of Saint-Michel-de-Montjoie also has a park-museum dedicated to this granite history.

Are there family-friendly natural monuments to visit?

Absolutely. Several natural monuments are suitable for families. Lac du Gast is a great spot for observing nature and waterfowl. The meadows dotted with granite balls at Hameau Les Nouettes and The Bœufs of the Croix Denise offer unique geological sights that can be interesting for all ages.

What outdoor activities can I do near these natural monuments?

The region provides various outdoor activities. You can enjoy hiking and mountain biking, especially around the Étang de Coulanges, which is nestled within the Forest of Saint-Sever. For more extensive hiking, cycling, or road cycling, you can explore the many routes available in the area. Find detailed routes and guides for hiking, cycling, and road cycling around Coulouvray-Boisbenâtre.

Are there hiking trails that incorporate these natural monuments?

Yes, there are several hiking trails that allow you to experience the natural monuments. For instance, you can find a moderate 8 km loop trail called the Lac du Gast – Birdwatching observatory loop from Le Gast. Another moderate option is the Hameau Les Nouettes – Montjoie Wood loop from Saint-Pois. You can find more hiking options in the Hiking around Coulouvray-Boisbenâtre guide.

What is the best time to visit the natural sites around Coulouvray-Boisbenâtre?

The natural sites, especially the Ornithological Reserve, are particularly vibrant from autumn onwards when bird populations are most numerous. Generally, spring and summer offer pleasant weather for hiking and exploring the lakes and forests. However, the unique geological formations can be appreciated year-round.

What do visitors enjoy most about the natural monuments in this area?

Visitors often appreciate the tranquility and natural beauty of the area. The Lac du Gast is praised for its 'osmosis with nature' and as a 'great habitat for waterfowl.' The Étang de Coulanges is described as a 'haven of peace' with a beautiful view and picnic area. The unique granite formations also provide an interesting and distinctive landscape.

Can I access the natural monuments by public transport?

While specific public transport links directly to every natural monument might be limited, many of the sites, especially those within the Forest of Saint-Sever or near villages, are often accessible via local roads. For detailed information on public transport options to trailheads or specific locations, it's best to check local transport schedules or consider driving to the starting points.

Are there viewpoints to enjoy the scenery?

Yes, the Étang de Coulanges offers a beautiful view of the water from its dike, providing a peaceful setting within the forest. Other natural areas, particularly those with elevated sections or open meadows, also offer scenic vistas of the surrounding landscape and its unique geological features.

What are the regulations for visiting these natural sites?

When visiting natural sites, it's generally important to respect the environment. For example, fishing is prohibited at Étang de Coulanges. Always stay on marked paths, take all litter with you, and avoid disturbing wildlife, especially in areas like the Ornithological Reserve. Specific regulations may apply to certain areas, so look for signage on-site.

Is it possible to visit these natural monuments with a dog?

Many natural areas and trails in the region are dog-friendly, especially those within the Forest of Saint-Sever. However, it's always recommended to keep dogs on a leash to protect wildlife and ensure the safety and comfort of other visitors. Specific rules might apply to sensitive areas like bird reserves, so check local signage.

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

GenêtsBacillyVainsDragey-RonthonSartilly-Baie-BocageSaint-Jean-Le-ThomasCéauxPréceyServonLolifLe Val-Saint-PèreCourtilsHuisnes-Sur-MerSaint-Jean-Des-ChampsSaint-PlanchersPontorsonCrollonTanisVergonceyMarcey-Les-GrèvesSaint-Pair-Sur-MerLa Lucerne-D'OutremerCarollesJullouvilleChampeauxSaint-Pierre-LangersSaint-Aubin-Des-PréauxPerriers-En-BeauficelBeauvoirLe Mont-Saint-MichelPontaubaultJuilleySourdevalChérencé-Le-RousselBeauficelSaint-Martin-Le-BouillantSaint-Maur-Des-BoisBoisyvonSaint-Laurent-De-CuvesSaint-PoisCuvesLingeardSaint-Michel-De-MontjoieGathemoSaint-Jean-De-La-HaizePoilleyLe Mesnil-AdeléeLe Mesnil-GilbertLe GripponPontsSaint-Senier-Sous-AvranchesSaint-Martin-Des-ChampsSaint-Quentin-Sur-Le-HommeSaint-LoupLa Croix-AvranchinDucey-Les-ChérisVilliers-Le-PréAucey-La-Plaine

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