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Stones in Cups

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Stones in Cups in Feissons-sur-Isère

Mairie de Feissons sur Isère

Throughout the year : open daily.

Pratical informations


73260 Feissons-sur-Isère
Free access.


The etymology of the word "cup" refers to the Latin "small cut", it is said about cavities carved on prehistoric rocks or megalithic vestiges.

Their origin is assigned to the phenomena of mechanical and chemical erosion due to the almost permanent presence of rainwater or runoff.
Stagnant water contained in the cavities has a very low pH and therefore has a corrosive action. By this extremely slow process, several neighboring cups may meet in the end: they became "coalescent cups".


Free access.