The Earth Pyramids of South Tyrol have taken shape in the course of many centuries and are attributable to erosion and particular circumstances, including subsequent periods of rain and aridity and a particularly wind-protected position. The erosion phenomenons rise above all in the places where Ice Age glaciers have deposited moraine slit in the valleys. In combination with water, this dry material that is hard as stone becomes a loamy mass, flowing towards the valley.

Steep walls are formed. If a large stone is embedded in the clay, it protects the underlying material from rain and remains dry and hard. This is how these earth columns are formed, which can reach a height of about 30 metres. They can be found in various places, also in the Merano region: Some Earth Pyramids are located near Caines and can be reached on the Earth Pyramid Trail, which leads to the earth columns in 35 minutes, or also visible from the Caines Waalweg path.

The village of Tirolo is also home to these natural phenomena. If you take the Alta Muta Cable Car towards the Muta Farms, you can enjoy a beautiful view on the Earth Pyramids near Castel Tyrol. Four or five of them have survived in the gorge at the Rio alla Muta stream, while the rest were broken away by a storm several years ago. The best way to see them from close up is during a hike along the Herrschaftsweg path or on the path from the castle to the Farmerkreuz.