Sperrstelle Wildhaus, Military fortification in Toggenburg, Switzerland
Sperrstelle Wildhaus is a military fortification in the Toggenburg valley comprising several connected bunkers and underground chambers. The site includes machine gun positions, infantry caverns, and various underground spaces for storage and occupation.
The structure was built in 1939-1940 by the Swiss Army in response to threats during World War II. It formed part of a broader defensive line to protect the Alpine region from potential attacks.
The site shows how Switzerland secured its borders during the war and reflects Swiss engineering in the mountains. You can see today how different areas were designed to work together to protect people and supplies over extended periods.
The site sits on steep mountainous terrain and requires hiking boots and good fitness for exploration. Underground spaces are sometimes cramped and can be damp, so wear sturdy clothes and move carefully through the passages.
The site comprises two separate installations, Wildhaus Nord and Wildenburg, positioned at close distance from each other. This dual arrangement created overlapping fields of fire to form a particularly strong barrier against intruders.
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