eroded sandstone rock formation between sasso marconi (pieve del pino) and pianoro municipalities. bologna province

badlands bologna emilia romagna emiliaromagna italian italy pianoro pieve del pino sasso marconi savena cliff clouds countryside day dry eroded erosion fields formation geological geology green hills landscape mountain municipality natural nature outdoor plowed province river rock rocks rocky rural sandstone scenery scenic sky stone summer sunny tourism travel valley vineyards wood municipalities emilia-romagna municipalities