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Park · Bolzano, Trentino-Alto Ádige
Piramidi di terra del Renon
Columns of clay carved by erosion, many with a balancing stone on top, on the slopes of the Renon plateau, considered among the tallest in Europe and visible from short trails.
Illustrative images. The pictures in this guide are illustrations based on the real place, not photographs, and may differ from it.
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About Piramidi di terra del Renon
The Renon earth pyramids, Erdpyramiden in German, are columns of clay and gravel formed by the erosion of former glacial deposits. Rain carves grooves in the ground; where there is a large stone, it protects the clay beneath and forms a column with a stone 'hat' on top.
The columns change over time. When a column thins, the stone falls and the pyramid disappears, while others form nearby. On the Renon they are among the tallest in Europe, and old local people called them towers of landslides.
There are three viewpoints: Longomoso, Soprabolzano and Auna di Sotto. Longomoso, near Collalbo, is the most visited, with a marked path and viewpoints over the valley. Soprabolzano is reached by cable car; Longomoso and Auna di Sotto by bus or on foot along the plateau trails.
Before you go
Practical information
Cidade Turismo reviews its information regularly, but something may have changed. Check with the place before planning your trip.
How much time to set aside
1 to 2 hours, including the walk.
Best time
From May to October, when the trails are dry. Late afternoon light enhances the color of the clay. After heavy rain the ground becomes slippery.
How to get there
Cable car from Bolzano to Soprabolzano and the little train to Collalbo; from there a marked trail or bus to Longomoso and then a short walk to the viewpoints.
Tip
Stay on marked trails: the slopes are unstable and the columns can break down easily. Wear shoes with good soles.
Official website
Get your questions answered
Frequently asked questions about Piramidi di terra del Renon
How are the earth pyramids formed?
By rain erosion of old glacial deposits. Where a large stone sits, it shields the clay beneath and a column with a stone 'cap' forms.
What's the best spot to see them?
Longomoso, near Collalbo, is the most visited. There are also viewpoints in Soprabolzano and Auna di Sotto.
Is the walk difficult?
No. They are short, waymarked trails with some uphill sections. Sturdy-soled shoes help.