Although not exactly a region, almost all of the wineries, bodegas, producing Cava are located in the Penedes region of Spain, just south of Barcelona with the main town of St. Sadurni and its name comes from the stone cellars (cavas) in which the wine is matured. While the original Cavas were produced exclusively in Catalonia, nowadays Cava can come from various parts of Spain. Aragon, Navarra, Rioja, Pais Vasco, Valencia and Extremadura, regions that all have demarcated areas which qualify for the DO, although in reality less than 10% of Cava wine comes from these regions. The common denominator between the different areas is the climate, largely Mediterranean. The traditional grape varieties used in Cava are Macabeo, Parellada and Xarel-lo, but Chardonnay and Pinot Noir are now being used. Macabeo makes up around half of grapes grown.