The family maintains three vineyards in three distinct regions of Mendoza. In Agrelo, on the same plot where the family lives, they've planted Cabernet Franc, which does well in the alluvial loam soil there. Another plot is in Ugarteche, where 50-year-old Malbec vines are tended. The last vineyard is in Valle de Uco, the high-altitude region where some of Mendoza's finest wines are being made. At 3,300 feet above sea level, with a huge diurnal temperature range, the grapes develop complex fruit flavors and aromas as well as vibrant acidity and sturdy tannins. Monte Quieto strives to express the terroir of its land in every bottle it produces, carefully matching varietals with plots of land.
Agustin and Matilde believe blending grape varietals creates more elegant and complex wine. Because of their love of Bordeaux blends, they opted to concentrate on Cabernet Franc, an unusual choice for Mendoza wineries at the time but one that has shown great results.