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Lac de Serre-Ponçon | Demoiselles Coiffées de Pontis

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This formation of hoodoos or earth pyramids has evolved in a deposit characterized by a broad variety of grain sizes, most likely glacial till. Those areas beneath large blocks are protected from the otherwise intense erosion related to heavy rainfall, resulting in the formation of bizarre columns. They are, however, short-lived in geological time scales, so that the landscape is changing rapidly. The top of one of the features still represents the pre-erosion surface.

Location
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Created
on Wednesday 1 September 2021 by Martin Mergili
Region
Visits and license
1716 visits, CC BY-NC-SA 4.0 DEED license