Natural monuments around Auswil, Switzerland, showcase unique geological formations and dynamic ecosystems. The region features impressive erratic boulders, remnants of the Ice Age, and beaver-shaped wetlands. These natural features provide insights into powerful geological forces and ongoing ecological processes. Visitors can explore a variety of natural landscapes, from ancient rock formations to active wetland environments.
Last updated: June 26, 2026
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Very idyllic little pond - nice little walk via Thunstetten Castle.
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Beautiful view with coffee and cake 🎂
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This boulder is called Grossi Flue. It weighs a whopping 3,500 tons and has a volume of 1,200 cubic meters. The boulder was brought here by the Rhone Glacier – this is evident from the hornblende gneiss. The enormous boulder was purchased by the Swiss Society of Natural Sciences in 1869 and placed under protection. Otherwise, it would likely have fallen victim to railway construction.
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All-round view of the Jura and Bernese Alps
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Very fine food and friendly service.
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With a height of 818 m, the Oberbühlchnubel towers above the surrounding hills of the Wynigen Mountains. The vantage point with its Brätliplatz is a popular destination for hikers.
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Visitors frequently enjoy the Brestenegg Alpine Inn, which offers panoramic views and a unique linden tree on a striking hill. Another highly regarded site is the Grossi Flue Erratic Boulder, a colossal Ice Age remnant. The Oberbühlchnubel summit is also popular for its sweeping views from the Bernese Oberland to the Solothurn Jura.
The region is renowned for its impressive erratic boulders, remnants of the Ice Age. The most notable is the Grossi Flue Erratic Boulder, weighing 3,500 tons and transported by the Rhone Glacier. Other significant boulders like Kilchfluh and Menhir, collectively known as 'Foundlings from the Stone Age,' also showcase the powerful geological forces that shaped the landscape.
Yes, the beaver-shaped wetlands near Auswil are a compelling example of dynamic ecosystems. These wetlands highlight the significant impact beavers have on the landscape through their dam-building and tree-felling activities, creating new habitats and ecological changes in previously monotonous flowing waters. You can observe signs of their return and influence on the environment at the Beaver-shaped wetland near Bern.
Many natural monuments around Auswil offer stunning panoramic views. For instance, the Brestenegg Alpine Inn provides expansive vistas, and the Oberbühlchnubel summit boasts sweeping views stretching from the Bernese Oberland to the Solothurn Jura.
Absolutely. The Grossi Flue Erratic Boulder and the associated 'Foundlings from the Stone Age' are considered family-friendly. Children often enjoy practicing their climbing skills on the less steep Kilchlifluh boulder. The Brestenegg Alpine Inn is also a great family stop with its restaurant and scenic views.
The area around Auswil offers various outdoor activities. You can find numerous routes for gravel biking, running, and cycling. For gravel biking, explore options like the 'On the banks of the Emme' loop. Running enthusiasts can enjoy trails such as the 'Langete River loop'. Cyclists have routes like the 'Spycher Handwerk Animal Farm' loop. You can find more details on these activities in the Gravel biking around Auswil, Running Trails around Auswil, and Cycling around Auswil guides.
Yes, the natural monuments are often integrated into hiking routes. For example, reaching the Oberbühlchnubel summit involves a climb that rewards hikers with expansive views. Many of the cycling and running routes mentioned above can also be adapted for hiking or walking to experience the natural beauty up close.
The erratic boulders, such as the Grossi Flue Erratic Boulder, are significant 'foundlings from the Stone Age.' They are silent witnesses to the Ice Age, having been transported from the Valais region by the Rhone Glacier over 10,000 years ago. The Grossi Flue was even purchased and protected in 1869 to save it from destruction, highlighting its historical and geological importance.
Visitors particularly appreciate the impressive size and geological insights offered by the erratic boulders, and the sense of power and wonder they evoke. The panoramic views from viewpoints like Brestenegg Alpine Inn and Oberbühlchnubel are also highly praised. The unique ecological processes observed in the beaver-shaped wetlands add another layer of interest, making for a rich outdoor experience.
Yes, the Brestenegg Alpine Inn is a restaurant located directly at a natural monument, known for its rustic charm and fine menus. There are also other restaurants and accommodations in the broader Auswil region, providing options for visitors to dine and stay.
The natural monuments around Auswil can be enjoyed throughout the year, with each season offering a different perspective. Spring and autumn provide pleasant temperatures for hiking and exploring the geological formations and wetlands. Summer is ideal for enjoying the panoramic views, while winter can offer a serene, snow-covered landscape, though accessibility might vary.


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