La Pierre Couvretière dolmen

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The dolmen de la Pierre Couvretière is a dolmen located in Ancenis-Saint-Géréon, France. The monument was classified as historical monuments in 1926. He was the subject of two successive excavations carried out, respectively, under the responsibility of Jean L'Helgouach in October 1972 and Daniel Prigent in November 1973. It is the only dolmen still visible in the Land of Ancenis.