Circuit du Granit
BECON-LES-GRANITS
Depart from Place de la Mairie in Cheffois, where the trail takes in the church, the quarries and the rock chapel.
The Ruillé-Froid-Fonds circuit will take you through the countryside of southern Mayenne.
Grues, from the Welsh word "grug", was once an island surrounded by the sea. The sea gradually retreated.