Best attractions and places to see around Lugnez include historical landmarks and scenic routes in the Jura region, spanning parts of France and Switzerland. This area is characterized by its diverse landscape, offering a blend of natural beauty and cultural heritage. Visitors can explore a variety of sites, from ancient castles to panoramic viewpoints. The region provides opportunities for outdoor activities and cultural discovery.
Last updated: October 18, 2026
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The Largtalbahn: Dannemarie–Pfetterhouse–Bonfol The line was called Largtalbahn in German, or the Dannemarie–Pfetterhouse railway line. It ran from Dannemarie (Dammerkirch) through the Largtal via Dannemarie → Altenach → Mertzen → Friesen → Seppois-le-Bas → Pfetterhouse → Swiss border → Bonfol → Porrentruy. The French section was about 20 km long. The line opened in 1910 and was initially a connection within the then German Empire, or between the German Empire and Switzerland. When the line was built, Alsace still belonged to the German Empire. The state treaty for the railway connection between Pfetterhausen and Bonfol was concluded in 1906 between the German Empire and Switzerland. With the start of the First World War, cross-border traffic was stopped. The border between Pfetterhouse and Bonfol was closed. At the same time, Pfetterhouse was located directly at the southern end of the Western Front. The railway could no longer be used simply as a normal international connection. The military significance of the area was considerable: military operations took place in the forests on both sides of the border, partly to prevent Alsatians from fleeing to Switzerland. Even today, traces of shell impacts are still present there.
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The Dreiländerstein from 1871 stands in the area near Largitzen/Pfetterhouse and commemorates the then border between France, Germany and Switzerland after the Franco-Prussian War and the annexation of Alsace-Lorraine by the German Empire.
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Mörsberg Castle, sometimes called the "Alsatian Pierrefonds," contains impressive remains of the defensive structures surrounding its keep: the flanking tower, which defended the former lodge with several window openings, and the enormous vaulted cellar, more than 50 meters long.
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This former railway line is now a car-free cycle path that takes you from Dannemarie to Pfetterhouse, past ponds, forests and typical villages of the Sundgau. The route is slightly undulating and well paved. You cycle through one of the most rural parts of Alsace, with plenty of chance to spot herons, dragonflies and carp.
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Really easy ride along the cycle way. Goes downhill from Pfetterhouse to Dannemarie. Enjoyable
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Nestled in lush greenery, Morimont Castle was first mentioned in 1183 and controlled the upper Largue valley. It was destroyed during the Thirty Years' War by French troops. The site is currently closed to the public due to work. You will nevertheless be able to tour the ruins and see the interior of the castle and its vaulted cellar through the gates.
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Former 3-country corner. Barbecue area right next to it. Invites you to take a break.
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Although the path on the former railway line is rather unspectacular, it still has exciting things to offer. You can easily imagine that trains once ran here.
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Lugnez is rich in history, offering several significant landmarks. You can visit the Porrentruy Castle, a well-preserved late medieval to early baroque castle with a mighty Réfus Tower and panoramic views. Another historical site is the ruin of Château du Morimont, a hilltop castle near the French-Swiss border, which offers a nice picnic area. Don't miss the Three Powers Boundary Stone, a man-made monument marking a former three-country corner, also with a picnic spot.
Yes, the Lugnez region, known as the 'Valley of Light', boasts stunning alpine landscapes and panoramic views. You can ascend the Mont Renaud Observation Tower for a great view of the Vosges Mountains and the Swiss Jura. While not directly in Lugnez, the nearby 'Swiss Grand Canyon' (Ruinaulta Gorge) offers opportunities for natural adventures like rafting, accessible from Ilanz.
The region is ideal for various outdoor activities. Cycling is popular, with options like the Largue Valley Cycle Path, a car-free route on a former railway line perfect for spotting local wildlife. For more extensive cycling, you can explore numerous road cycling routes, touring bicycle routes, and gravel biking trails that traverse the diverse landscapes of the Jura region.
Absolutely! Many attractions in Lugnez are suitable for families. The Three Powers Boundary Stone and Mont Renaud Observation Tower are both tagged as family-friendly. The Largue Valley Cycle Path is a car-free route perfect for family bike rides. Additionally, the Porrentruy Castle is open to the public and offers meadows behind the complex for walks, and even has dedicated parking for campers with facilities.
Lugnez offers a variety of cycling experiences. The Largue Valley Cycle Path is a well-paved, car-free route on a former railway line, ideal for leisurely rides through ponds and forests. For more challenging rides, there are numerous road cycling routes, touring bicycle routes, and gravel biking trails available, catering to different skill levels and preferences.
Lugnez, also known as Val Lumnezia, is a picturesque side valley situated in the Surselva region of Switzerland. It is part of the broader Jura region, which spans parts of France and Switzerland, characterized by its diverse natural beauty and cultural heritage.
Several attractions offer excellent spots for a picnic or a rest. The Three Powers Boundary Stone has a barbecue area right next to it, inviting visitors to take a break. The ruin of Château du Morimont also provides a nice picnic and rest area. Additionally, the meadows behind Porrentruy Castle are perfect for a leisurely walk and relaxation.
Yes, large parts of Porrentruy Castle are open to the public. You can enjoy fantastic views over the medieval town from here. The centerpiece, the mighty Réfus Tower, can be climbed, though it requires a head for heights due to its spiral external staircase. For convenience, there are even pitches for campers with electricity behind the palace complex and a clean toilet block. If you wish to leave towards the city, you can use a spiral staircase or an elevator.
The Largue Valley Cycle Path is unique because it's built on a former railway line, making it a car-free and well-paved route. It stretches from Dannemarie to Pfetterhouse, passing through ponds, forests, and typical villages of the Sundgau region. Cyclists often spot herons, dragonflies, and carp along the way, offering a serene and natural experience.
Beyond the prominent castles, the Lugnez region (Val Lumnezia) is dotted with numerous churches and chapels, contributing to its rich cultural landscape. The village of Vrin is notable for its well-preserved old town center and the 17th-century baroque Church da Nossadunna e Sogn Gion Battesta, which features a unique ossuary door. In Vella, you can find the Church Sogn Vintschegn, the oldest church in the valley, originally built in the 9th century.
From the Mont Renaud Observation Tower, you can expect a panoramic view that encompasses the majestic Vosges Mountains and the picturesque Swiss Jura. This 15-meter high steel and wooden tower, built in 2001, offers a fantastic vantage point to admire the surrounding landscapes.
Yes, for those interested in regional history and culture, the Museum Regiunal Surselva is located nearby in Ilanz. This museum provides valuable insights into the heritage of the Surselva region, which includes Val Lumnezia (Lugnez).


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