The most important and, with 144,000 hectares of vineyards, also by far the largest wine-growing region in Argentina. The Argentine wine growing pioneer Don Tiburcio Benegas (1844-1910) was governor of this province. Around 75% of Argentina's wine is produced here. It is located in the far west of the country at the foot of the Andes and stretches from Lavalle in the north for 300 kilometres to San Rafael in the south. It has a continental climate with clear seasons, mild and dry climate and medium humidity. The soils are mostly stony with a calcareous upper layer of sand, clay or loam. This creates excellent conditions for quality viticulture. The vineyards are situated at an altitude of 500 to 1,200 metres above sea level. About half of the vineyard area is planted with the indigenous varieties Cereza, Criolla Grande and Criolla Chica.
The light red or white table wines (Vino de Mesa), RTK and also table grapes intended for mass consumption are produced from them. The other half is equally divided between red and white quality wine grapes (see the table under Argentina). An Argentinean peculiarity are the vines, some of which are already very old. The Mendoza region is divided into five large areas, which are located like oases near rivers that provide half of the necessary water for the indispensable artificial irrigation of the vineyards. For four to five months of the year there is no rain at all, but relatively often hail). The other half is pumped from a total of 17,000 wells from a depth of up to over 100 metres.
The Mendoza region is divided into five large areas, which are located like oases near rivers that provide half of the water needed for the indispensable artificial irrigation of the vineyards. For four to five months of the year there is no rain at all, but relatively often hail). The other half is pumped from a total of 17,000 wells from a depth of up to over 100 metres.
The areas with important subzones and locations are Norte Mendocino (Guaymallén, Las Heras, Lavelle, part of Maipú, San Martin), Río Mendoza or Alta del Río Mendoza (Agrelo, Anchoris, Barrancas, Carrizal, Carrodillas, Coquimbito, Las Compuertas, Luján de Cuyo, Lunlunta, main part of Maipú, Mayor Drummond, Perdriel, Ugarteche, Vistalba), Este Mendocino (Junin, Rivadavia, San Martin and Santa Rosa), Sur Mendocino (General Alvear, San Rafael) and Valle de Uco (San Carlos, Tunuyán, Tupungato).
Well known producers are Achával Ferrer, Alta Vista, Altos Las Hormigas, Bianchi, Bodegas Caro, Bodegas Esmeralda, Bodegas López, Bodegas y Viñedos O. Fournier, Bodega Vistalba (Carlos Pulenta), Catena Zapata, Chandon (owned by Moët et Chandon), Cicchitti, Dominio del Plata, Fabre Montmayou, Finca La Anita, Finca Flichman, Hispano-Argentinas, Lagarde, La Rural, Lavaque, Lurton, Marqués de Griñón, Navarro Correas, Nieto y Senetiner, Norton, Orfila, Peñaflor, Pulenta Estate, Santa Ana, Trapiche, Weinert and Zuccardi Valle de Uco.