Fort Høytorp

Fort Høytorp is a mountain fortress with an extensive tunnel system, rooms carved into rock, and defensive installations in Indre Østfold. The site is enclosed by a barbed wire barrier and contains underground barracks areas, ammunition storage, and multiple artillery positions.

The fortress was built between 1912 and 1918 to strengthen Norway's defense against potential invaders. It saw combat in April 1940 when German forces attacked, and played a central role in Norway's wartime strategy.

The fort became a symbol of national defense after the conflict with German forces in 1940. Visitors can see the restored cannons and barracks rooms today, which show how soldiers lived and worked at this mountain facility.

The fort is accessible during summer months and can be explored through guided tours. The underground passages are easy to walk through, but sturdy footwear is recommended since the paths run through carved stone.

The main building Reduiten was Norway's largest concrete structure when completed and contained specialized functional areas for military operations. This remarkable engineering achievement shows how ambitious Norway's defense planning was in the early 1900s.

Location: Indre Østfold Municipality

GPS coordinates: 59.56250,11.34472

Latest update: December 9, 2025 18:43