Sperrstelle Näfels, Defense fortification in Glarus, Switzerland.
Sperrstelle Näfels is a military installation spanning the valley entrance north of Näfels, featuring artillery positions, infantry bunkers, and anti-tank barriers arranged across the terrain. Six preserved bunkers, historical gun positions, and water-filled trenches form a defensive network that marked hiking paths now traverse.
The site incorporates fragments of a medieval defensive wall from 1352 but was mainly developed during World War II under the Glärnisch Group command. Its purpose was to defend mountain passes and key access routes to inner Switzerland.
The installation reflects Swiss military engineering traditions, with artillery positions designed to resemble mountain chalets and blend into the landscape. Visitors can observe how function and local aesthetic merged throughout the site.
The site is accessible via marked hiking paths, though sturdy footwear is recommended since bunkers are scattered across hilly terrain. Spring through autumn offers the most comfortable conditions for exploring the installations.
The anti-tank ditch T 3500, built in 1941, now functions as an ecological corridor crossed by multiple bridges including one spanning Rauti stream. This transformation of a wartime barrier into a wildlife passage is an unexpected legacy of the fortification.
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