A few kilometers from Trieste, right at the border with Slovenia, in the municipality of San Dorligo della Valle - Dolina, the karst upland is carved by a valley groove, the Val Rosandra-Dolina Glinščice - which has now become a Nature Reserve - where the only superficial water course in the Karst region around Trieste flows: the stream Rosandra-Glinščica, which has always fed its plants, housed its animals and represented an attraction for man and anthropic activities.