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Switzerland
Espace Mittelland
District de Porrentruy

Grandfontaine

Top 8 Natural Monuments around Grandfontaine

Best natural monuments around Grandfontaine offer diverse natural features for exploration. This region is characterized by its varied landscapes, providing opportunities to discover unique geological formations and historical natural sites. Visitors can find a range of natural monuments, from botanical gardens to ancient fossilized tracks. The area presents a blend of natural beauty and points of scientific interest.

Best natural monuments around Grandfontaine

  • The most popular natural monuments is Porrentruy Botanical Garden, a natural monument that is one of…

Last updated: July 10, 2026

Porrentruy Botanical Garden

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The botanical garden in Porrentruy is one of the oldest of its kind in Switzerland. It was created in 1798 by order of Paris after the city was annexed by …

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Fontaine de Roches

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The Roches fountain is a natural fountain formed by a limestone rock called tuff or travertine, which creates a beautiful waterfall of water. The fountain is located at the foot …

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Dinosaur Tracks of Pommerat

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It goes via a muddy trail to the well-preserved dinosaur tracks that are 150 million years old

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All 3 trees that were lying across the route had to be overcome (including my 49 kg bike with luggage).
Some of the trees had already been cleared

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Doue Spring

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The source of the Doue is located behind an old mill which once used dynamite from the water to grind the cereals of the region. During the hot summers, the place turns into a haven of freshness.

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Paul_C
October 15, 2023, Fontaine de Roches

The Roches fountain is a natural fountain formed by a limestone rock called tuff or travertine, which creates a beautiful waterfall of water. The fountain is located at the foot of a cliff, near the village of Roches-lès-Blamont, which sits on a rocky promontory overlooking a valley. You can access the fountain by following a path that leaves the village and goes down to the stream. The hike is approximately 2 km and takes approximately 45 minutes. You can enjoy the view of the fountain and the surrounding forest, as well as the historical and cultural heritage of the village, which includes some old buildings and monuments. The fountain is particularly impressive after heavy rains, when it flows abundantly and creates a veil of water above the tuff.

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A place where tranquility reigns supreme.

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The source of the Doue is located behind an old mill which once used dynamite from the water to grind the cereals of the region. During the hot summers, the place turns into a haven of freshness.

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If you stop in Porrentruy, if you are a herb, plant and flower enthusiast, you should definitely pay a visit to the Parc du Jardin Botanique. After the botanical garden in Basel, it is the second oldest in Switzerland. It is striking that in addition to the almost inexhaustible variety of plants, one or the other sundial on several house fronts shows the time in a shadowy way. A particularly idiosyncratic and modern example can be seen at the end of the park when you enter the area through the main portal. Right next to the botanical garden, there is a public car park that is subject to a fee. From the botanical garden, you can continue your journey of discovery in the direction of the old town, or pay your respects to the castle above the city.

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Over 600 local plant species from the Jura chain from Lake Biel to the Chasseral are on display. One focal point is the more than 70 varieties of roses and 180 varieties of irises, which enchant the garden in a huge sea of color when the flowers are in bloom.

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This is one of the most beautiful stretches of road: the sound of the Doubs, the birdsong, the fresh air and otherwise... just peace and quiet!

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All 3 trees that were lying across the route had to be overcome (including my 49 kg bike with luggage). Some of the trees had already been cleared

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Frequently Asked Questions

What are the most popular natural monuments around Grandfontaine?

Visitors frequently enjoy the Porrentruy Botanical Garden, one of Switzerland's oldest botanical gardens, featuring over 600 local plant species. Another favorite is the Doue Spring, a refreshing waterfall behind an old mill, especially pleasant during warmer periods. The Dinosaur Tracks of Pommerat also draw interest with their well-preserved 150-million-year-old fossilized footprints.

Are there family-friendly natural monuments to visit near Grandfontaine?

Yes, several natural monuments are suitable for families. The Porrentruy Botanical Garden offers a beautiful and educational experience for all ages. The Dinosaur Tracks of Pommerat are particularly engaging for children, with informative boards and a dinosaur replica they can ride. The Fontaine de Roches also provides a pleasant, relatively easy hike to a natural fountain.

What kind of geological features can I expect to see around Grandfontaine?

The region around Grandfontaine, nestled in the northern Vosges mountains, offers diverse geological features. You can explore natural fountains formed by limestone rock, such as the Fontaine de Roches, which creates a beautiful waterfall. The area also features caves like Grotte de la Roche, where water flows from the cave portal. Additionally, the prominent Le Donon mountain, the highest point in the lower Vosges, showcases the region's mountainous terrain.

Are there historical or archaeological sites associated with the natural monuments?

Yes, the region blends natural beauty with historical significance. Le Donon, a prominent natural monument, has been considered a sacred site since prehistoric times and was consecrated to Mercury by the Romans. Visitors can explore an archaeological discovery trail on its summit. Additionally, the Dinosaur Tracks of Pommerat are an archaeological site featuring 150-million-year-old fossilized footprints, protected under a tent roof with a didactic trail.

What outdoor activities can I do near these natural monuments?

The area around Grandfontaine is excellent for various outdoor activities. You can find numerous cycling routes, including road cycling, touring, and gravel biking. For example, you can explore routes like the 'Col de la Croix via Seleute' for road cycling or the 'Porrentruy Castle loop' for touring. For more details on these and other routes, refer to the Road Cycling Routes around Grandfontaine, Cycling around Grandfontaine, and Gravel biking around Grandfontaine guides.

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

The natural monuments are generally accessible from April to October, with the Dinosaur Tracks of Pommerat specifically open during this period. Spring and summer offer pleasant weather for exploring botanical gardens and waterfalls like the Doue Spring, which provides a refreshing environment during hot periods. Autumn also brings beautiful foliage to the Vosges mountains, enhancing the scenic views.

Are there any hidden natural gems or lesser-known spots worth exploring?

While not explicitly 'hidden,' the Fontaine de Roches is a charming natural fountain formed by limestone, offering a beautiful waterfall that is particularly impressive after heavy rains. Its location near the village of Roches-lès-Blamont provides a scenic and less crowded experience compared to more prominent sites.

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

Visitors appreciate the diverse natural features, from the rich biodiversity of the Porrentruy Botanical Garden to the unique geological formations like the Fontaine de Roches. The historical aspect of sites like Le Donon and the ancient Dinosaur Tracks of Pommerat also captivates many. The tranquility and refreshing atmosphere of places like the Doue Spring are frequently highlighted.

Is Le Donon considered a natural monument, and what makes it special?

Yes, Le Donon is a significant natural monument in the region, standing as the highest point in the lower Vosges mountains at 1009 meters. It's special due to its prominent visibility, which has made it a sacred site since prehistoric times, steeped in legends. The Romans also consecrated it to Mercury. The summit offers exceptional panoramic views, and visitors can explore an archaeological discovery trail with illustrated explanations.

Are there any caves to explore near Grandfontaine?

Yes, you can explore the Grotte de la Roche. Water flows from its portal, and a large, dry entrance is located a little higher up. You can enter via a rock staircase, though further exploration inside may involve getting wet. It offers a unique natural experience.

What should I wear when visiting the natural monument trails around Grandfontaine?

Given the varied terrain, including potentially muddy trails to sites like the Dinosaur Tracks of Pommerat and the mountainous environment of the Vosges, it's advisable to wear sturdy hiking shoes or boots. Layered clothing is recommended to adapt to changing weather conditions, especially when ascending to higher elevations like Le Donon, where temperatures can be cooler.

Are there options for food and drink near the natural monuments?

While specific cafes or pubs directly adjacent to every natural monument are not detailed, the village of Grandfontaine and surrounding towns in the Bas-Rhin region offer various independent restaurants and cafes. It's recommended to check local listings for establishments accessible from the main trails or villages after your explorations.

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

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