The Heldsberg artillery works was part of the border fortifications in the Rhine Valley. Due to its location, it controlled the eastern part of Lake Constance with its four 7.5 cm fortress guns in the north and the Rhine crossings in the Rhine valley as far as Montlingen in the south.

The Heldsberg artillery works near St. Margrethen is a very special excursion experience. It was part of the border fortifications in the Rhine Valley from the Second World War until 1993. Due to its location, it controlled the southern end of Lake Constance in the north with its four 7.5 cm fortress guns and the Rhine crossings in the Rhine Valley as far as Montlingen in the south. The barrage at Stoss near Altstätten secured the crossing into the Appenzell region. The Heldsberg Fortress Museum now also includes the impressive underground command bunker of Border Brigade 8, Haslen AI, with over 30 rooms dedicated to the "Cold War" period.

In the Heldsbergstube and in the "Kästlis" Haslen soldiers' bar, you will be spoiled with drinks and food. Changing special exhibitions enrich the military history museums.

Open every Saturday again from April 4, 2020 to October 31, 2020.

Important: The Heldsberg Fortress Museum, the Stoss Barrage and the Grenzbrigade 8 command bunker in Haslen, AI are open to registered groups all year round. The minimum charge is now CHF 180.00 on all days.


Note: This text was translated by machine translation software and not by a human translator. It may contain translation errors.