How does the altitude of vineyards affect the flavor of Malbec wine?

The Malbec grapes cultivated at higher altitudes are bestowed with milder temperatures and greater difference in the diurnal temperature, the characteristic process that slows down ripening and holds in the acidity. This eventually results to more intricate character of the wine, with more complexity and structure. Further, the high-atltitude vineyerds are characterized by well-drained soils which makes the quality of Malbec grapes even better.