Réserve Naturelle Nationale des Vallées de la Grand-Pierre et de Vitain

Located in the communes of Averdon and Marolles, the National Nature Reserve of "Grand-Pierre et Vitain" is a 300-hectare refuge for the fauna and flora of the Little Beauce. Composed of a mosaic of different natural environments, this exceptional site is home to numerous animal and plant species. The dry valley of the Grand-Pierre, dug into the limestone plateau, is of additional geological interest

For more information and a geo-balade in the dry valley and its annexes, go to: http://www.geologie41.cdpne.org/Site6.html