Mount Hudson

Mount Hudson is a stratovolcano in the Aysén Region that forms part of the southern volcanic arc of the Andes. A wide caldera filled with ice marks its summit, surrounded by dense forests that extend across the slopes and surrounding terrain.

The volcano remained unrecognized until 1970 when it was confirmed as active. The most significant event was the 1991 eruption, which distributed large quantities of ash and rock across the region and beyond.

The region surrounding Mount Hudson contains evidence of indigenous settlements that adapted their lifestyles following major volcanic events throughout centuries.

The location is remote and requires preparation, as it sits in rugged mountain terrain. Several rivers originate here and shape the hydrology of the surrounding area, which affects how the land can be explored.

Dense forest long concealed this volcano from recognition, explaining why its existence was documented only recently. This hidden nature makes it one of the lesser-known yet active volcanoes of South America.

GPS coordinates: -45.91819,-72.88381

Latest update: December 8, 2025 13:43