 The valley is broadly divided into an upper, drier part, often not particularly suited for agriculture, and a lower, very fertile, and well irrigated section, known in Lombardy and western Emilia as "la Bassa", "the low (plain)".The upper areas of the Po valley take local names which reflect in their meanings their being modestly suited for farming.So we have the Piedmontese "vaude" and "baragge", the Lombard "brughiere" and "Groane", or, exiting from the Po valley proper, the Friulian "magredi", areas remote from easily reachable water tables and covered with dense woods or dry soils.