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Monumento naturale regionale di Preia Buia

Monumento naturale regionale di Preia Buia, Natural monument in Sesto Calende, Italy.

Description

The Preia Buia natural monument consists of three erratic boulders made of serpentine rock, situated in a wooded area near the San Vincenzo Oratory. These boulders vary in size and display distinctive green-tinted surfaces worn by time.

History

The boulders were transported to this location during the last glaciation of the Quaternary period by moving ice sheets. The carved symbols on the rocks demonstrate that people used this site for rituals during prehistoric times.

Culture

The largest boulder carries many carved symbols and cup marks that suggest its former use as a sacred place for ancient rituals and gatherings.

Practical

The site is part of the Ticino Valley Natural Park and is reachable on foot via local hiking trails. Visit with sturdy footwear since the ground can be uneven and damp due to the wooded surroundings.

Did you know?

The serpentine stone exhibits magnetic properties that can interfere with compass readings and cause them to point in wrong directions. This rare characteristic makes the site interesting for anyone curious about geological features.

Location
Inception
May 22, 1984
Part of
Natural Park of the Ticino Valley in Lombardy
GPS coordinates
45.73608,8.62738
Latest update
December 9, 2025 20:24

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« Monumento naturale regionale di Preia Buia - Natural monument in Sesto Calende, Italy » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

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