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Description [EN]
The Heldsberg Artillery Fortress near St. Margrethen offers a unique excursion experience. From World War II until 1993, it was part of the Rhine Valley border fortifications. Due to its location, it controlled the southern end of Lake Constance to the north and the Rhine crossings in the Rhine Valley to Montlingen to the south with its four 7.5 cm fortress guns. Together with the Stoss barrier near Altstätten, it secured the transition into Appenzellerland. The offerings of the Heldsberg Fortress Museum now also include the impressive underground command bunker of Border Brigade 8, Haslen AI, which features over 30 rooms thematically focused on the "Cold War" era.
In the Heldsberg lounge and in the soldiers´ lounge "Kästlis" Haslen, you will be treated to drinks and meals. Rotating special exhibitions enrich the military history museums.
Important: For registered groups, the Heldsberg Fortress Museum, the Stoss barrier, and the command bunker of Border Brigade 8 in Haslen AI are accessible year-round. The minimum charge is now CHF 180.00 on all days.