Rioja in Northern Spain is best known for berry-scented, barrel-aged red wines made from Tempranillo and Garnacha. It is arguably Spain's top wine region. It is certainly the most famous, rivaled only by Jerez. Tempranillo and Garnacha, Graciano and Mazuelo (Carignan) are also used in red Rioja wines. A few wineries, notably Marqués de Riscal, use small quantities of Cabernet Sauvignon. White grapes are much less widely planted.