Renaud Benarrous, researcher-archaeologist, research analyst within the regional Nature park, entrainera us in meadows and moors of the Regional Natural reserve Earth and ponds of Brenne Massé-Foucault, in Rosnay, on earth them up and the roads of ponds. He will help us to find numerous indications allowing to understand the history(story) of places and we will be able, with him, to discover answers to old questionings(consultations): of when date ponds? Why were they created? By whom? Legendary did brennous monks really clean up a hostile and deserted marsh?