The recent human impact has determined a strongly alteration of the Quercus pubescens forest on the Gennargentu Mountains Single Inlet 2 Way Water Valve in Sardinia.At the present, in this area the oak is represented by ancient single trees which can be considered relict and monumental individuals of the ancient forest.In this study, the space/time succession of oaks stands were analized in 1977 and 1997 years by GIS software and by multitemporal cartographic analyses.Some data about Hand Mixer the stand structure are also reported.