Best natural monuments around Saulcy are characterized by diverse natural landscapes, including lakes, rivers, and unique geological formations. Located near the French-Swiss border, the region offers a variety of natural sites. These areas provide opportunities for observing diverse ecosystems and experiencing untouched natural environments. The natural monuments around Saulcy are ideal for those seeking tranquil outdoor exploration.
Last updated: May 14, 2026
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magnificent tuff stones
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The Etang de la Gruère nature reserve is a paradise for nature lovers. Opt for a morning hike to enjoy the calm, and to observe the rising mists over the water.
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The Source du Doubs is a powerful karst spring in a heavily karstified area of the Jura Mountains. It is located near Mouthe, in the Haut-Jura Regional Nature Park, at an altitude of 937 m at the foot of the wooded, up to 1419 m high Mont Risoux mountain range, which marks the border between France and Switzerland. The Doubs rises from a cave in the rock from a small, approximately five-meter-deep spring basin. The spring discharges an average of 1740 litres per second and is the exit of a complex cave system with several siphons. The discharge can vary greatly. Several layers of rock can be distinguished on the rock above the spring. Below the spring, the river plunges down over a small waterfall. About two kilometers below the Source du Doubs, the approximately nine-kilometer-long Cébriot flows into the Doubs.
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Imposing grotto and at the same time a place of pilgrimage. Here you should switch from the hiking trail near the bridge to the road and pause for a moment and enjoy the gentle coolness and refresh yourself with the water from the Karlsquelle (which is said to have healing powers). A small karst spring arises inside the cave. The water flows as a trickle from a stalagmite into a shallow basin. There is a crucifix under the entrance arch of the grotto, dedicated to Saint Columba of Sens, a 3rd century martyr. The place has been the destination of a pilgrimage on August 15th since the 13th century. The spring water is said to have miraculous healing powers. More: https://de.wikipedia.org/wiki/Grotte_de_Sainte-Colombe
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The Plain-de-Saigne pond is a small artificial lake located in Montfaucon. It's a great place to picnic and admire the reflections of the sky and trees on the water. You can also learn about the history of the lake, which was once home to a mill and peat extraction site.
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The Sorne has dug itself deep into the rocks and today roars between almost vertical walls through the wildly romantic gorge. Numerous springs flow into the Gorges du Pichoux. Are there actually 1,000 sources, as the name “Pichoux” translates to? At the end of the gorge, Lac Vert shines like an emerald in the most wonderful shades of green - a fantastic place for your picnic. The Gorges du Pichoux is located on the road between Bellelay and Undervelier. By public transport or by car go to Sornetan, Le Pichoux.
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Grotto in the rock with many thank you plaques.
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Impressive grotto and pilgrimage site. You should really stop here and enjoy the gentle coolness and fill your bottle with the water from the Karlsquelle (which is said to have healing powers). Inside the grotto, a small karst spring rises. The water flows as a trickle from a stalagmite into a shallow basin. There is a crucifix under the entrance arch of the grotto, which is dedicated to Saint Columba of Sens, a martyr from the 3rd century. Since the 13th century, the place has been the destination of a pilgrimage that takes place on August 15th. The spring water is said to have miraculous healing powers. More: https://de.wikipedia.org/wiki/Grotte_de_Sainte-Colombe
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The region around Saulcy is rich in diverse natural features. You can discover significant bogs like Étang Plain-de-Saigne, which is a raised peat bog of national importance, or the serene Étang de la Gruère, a nature reserve known for its misty mornings. The area also features impressive geological formations such as the Grotto of Sainte-Colombe, a romantic rock cave with a natural spring.
Yes, several natural monuments around Saulcy are suitable for families. Both Étang de la Gruère and Étang Plain-de-Saigne are great for peaceful walks and nature observation. The Doubs river offers small beaches, and the Grotto of Sainte-Colombe provides a cool and intriguing stop for all ages.
Beyond exploring the natural monuments themselves, the Saulcy area offers various outdoor activities. You can find numerous cycling routes, including gravel biking and road cycling. For example, there are routes like the 'Sorne Gorge Road (Gorges du Pichoux) – Grotto of Sainte-Colombe loop' for road cycling. You can explore more options on the Gravel biking around Saulcy, Road Cycling Routes around Saulcy, and Cycling around Saulcy guide pages.
For birdwatching, Étang Plain-de-Saigne is a significant spot. As a raised bog and peat bog of national importance, it provides a tranquil environment ideal for observing various bird species.
The Grotto of Sainte-Colombe is a natural monument with significant cultural and historical ties. It is a pilgrimage site dedicated to Saint Columba of Sens, known for its Karlsquelle spring, which is believed to have healing powers. A pilgrimage takes place here annually on August 15th.
The natural monuments around Saulcy can be enjoyed throughout the year, but each season offers a different experience. Spring and autumn provide pleasant temperatures for hiking and observing nature's changing colors. Summer is ideal for enjoying the refreshing waters of places like Green Lake or the small beaches along the Doubs. For a serene and atmospheric experience, a morning hike at Étang de la Gruère to witness the rising mists is best shortly after sunrise.
Many of the natural monuments, such as Étang de la Gruère and Étang Plain-de-Saigne, offer peaceful and relatively easy paths around their perimeters, perfect for leisurely strolls. These areas are generally flat and well-maintained, making them accessible for beginners.
The Green Lake, or Lac Vert, is a small artificial lake formed by the Sorne river. Its unique emerald color, caused by the reflection of the surrounding forests, creates a very special natural spectacle. It's a beautiful spot to enjoy the scenery and the refreshing water.
Yes, you can find tranquil spots to relax by the water. Étang Plain-de-Saigne has benches and tables, making it a peaceful place to rest. The Doubs river also features small, charming beaches under trees, perfect for unwinding.
Visitors particularly appreciate the serene atmosphere and untouched natural beauty. The peaceful morning hikes at Étang de la Gruère, the unique ecological importance of Étang Plain-de-Saigne, and the dramatic landscapes of the Sorne Gorge (Gorges du Pichoux) are frequently highlighted. The emerald color of Green Lake also leaves a lasting impression.
Absolutely. Étang de la Gruère is highly recommended for photography, especially in the mornings when mists rise over the water. The vibrant emerald hue of Green Lake and the dramatic scenery of the Sorne Gorge also offer excellent photographic opportunities.
Many of the natural monuments offer scenic viewpoints. Both Étang de la Gruère and Étang Plain-de-Saigne provide beautiful perspectives of the lakes and surrounding nature. The journey through the Sorne Gorge also offers continuously changing and dramatic scenery.


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