Bierzo is a small, high-altitude region of 7000 ha in the north-west of Spain that is recognised as a “rising star”. The vineyards are planted on a 500m plateau below the Cantabrian Cordillera mountains and experience the diurnal temperature variation of a true continental climate. Most of the soil is alluvial with patches of limestone. Many red wines are produced from the Mencia variety which makes up 65% of the region's plantings. Garnacha, Tempranillo, Cabernet and Merlot are also used in blends in the region. These produce sturdy, tannic reds that often can age well and retain a strong mineral character. Bierzo also produces white and rosé wine styles made from local varieties.