Ronco delle Betulle nestles in the hilly eastern part of Friuli in a sub zone called Rosazzo, an estate of approximately 17 hectares, of which 10 are under vine. The hills of Rosazzo benefit from a special microclimate set by several geographical factors: its closeness to the sea, its altitude and the presence of elevated parts. The nearby sea (which is approximately 30 km away) and the vicinity of the hills of Salta Caterina mitigate the climate; it is more breezy,more sunny and less rainy here than in surrounding areas.