Surrounded on three sides by the Alps, including Monviso, where the Po rises, and Monte Rosa. Piedmont borders with France, Switzerland and the Italian regions of Lombardy, Liguria, Aosta Valley. Piedmont is one of the great winegrowing regions in Italy. More than half of its 700 square kilometres of vineyards are registered with DOC designations. It produces prestigious wines as Barolo, Barbaresco, from the Langhe near Alba, and the Moscato d'Asti as well as the sparkling Asti from the vineyards around Asti.