limestone slabs and abbey

In the 12th century, Cistercian monks did not go too far to find the stones to build the abbey of Sénanque. This limestone, a microcodium, is the result of the erosion of the Dalle des Busans, upstream, weakened by the Microcodium bacteria 40 million years ago. The fruits of this erosion have accumulated in an ancient lake, at the current location of the Sénanque farm. The monks thus used small quarries to build the abbey.