In Spain,quality wine production is preferably based on its distribution by very big Apellations of Origen (A.O.) often bigger than 105 ha-and we can refer to some of them as mountain viticulture,not only because of its specific landscape but mainly because of the medium or extreme altitudes in which the growing of vineyard is developed.This work is based on the analysis results of the studies about zoning that have been carried out by the authors in previous years.Thus,in this work,three of these apellations of origin-Bierzo,Calatayud and Somontanoare compared.