In the middle of the fifteenth century Earl Cabrera had the happy idea of giving plateau lands in emphyteusis to his subjects so that they would break up the soil, against payment of a small quantity of corn, and thus getting the twelve thousand salmes of corn that he exported in franchise. This led to a population explosion in the area, with the major urban growth of Ragusa and Modica, the subsequent colonisation of the Bosco Piano plateau and the foundation of Vittoria by the last heiress of Cabreras, Vittoria Colonna. From this period of great development are remains of late Gothic architectural vestiges, such as splendid portals in Scicli, in the Croce Monastery in Modica, in Santa Maria di Gesù church, and, in Ragusa, in the portal of old San Giorgio church and a whole nave in Santa Maria delle Scale church. So the characteristics of the province are determined by the country and the Ibla plateau, the "plain", as it is better known. This is a triangular calcareous plateau with its vertex to the north and its base to the south, in direction of the Mediterranean, further divided by the deep groove of river Irminio into Modica plain and Ragusa plain.
Source: Provincia Regionale di Ragusa