Forte Corno d'Aola

Forte Corno d'Aola is a military installation built above 1900 meters elevation on Dosso Prepazzone with three stacked terraces featuring concrete walls painted green. The structure was designed to command views of Tonale Pass, with multiple levels serving different defensive functions.

Construction took place between 1904 and 1914 as part of a defensive strategy for Tonale Pass alongside other fortifications. During World War I the installation saw active combat when artillery exchanges occurred with Austrian-held positions in the nearby mountains.

The fort emerged during a time when the border region required military security, and local mountain communities became familiar with constant military presence in their territory. Today the green concrete walls and tiered layout reflect how defense and daily life coexisted in this high-altitude environment.

The remains can be observed from the Valbione chairlift during descent and provide views of how it overlooked Tonale Pass. The location requires mountain experience since high elevation and steep terrain make casual visits challenging.

The installation housed six rotating armored cupolas equipped with 149 mm cannons that successfully engaged multiple enemy positions. These rotating gun turrets were technologically advanced for their time and marked a significant step in mountain defense engineering.