The DO in the Spanish region of Madrid
with 11,800 hectares of vineyards forms a semicircle around the southern suburbs of Madrid and is divided into three subzones. San Martín de Valdeiglesias lies to the west of the city, Navalcarnero borders the Madrid metropolitan area to the southwest and Arganda lies to the southeast. The white wines are produced from Airén, Albillo, Malvar (Lairén), Parellada, Torrontés and Viura, the latter three of which were only approved in 1996. The red wines are mainly made from Tinto Fino (Tempranillo) and Garnacha (Grenache) and smaller quantities from Cabernet Sauvignon and Merlot.