In the confluence of the Isle and the Dordogne , the great wine terroirs of Fronsac and Canon Fronsac rest on marvelous landscapes of plateaus and slopes. These complex soils are mainly limestone on the plateau, clay-limestone on the slopes and by minority clay and siliceous at the foot of the hills. Starfish limestone predominates on the butte and the plateaus. The molasse du Fronsadais (the Fronsac's molasse) is the print of the slopes and the valleys. Such characteristic of the terroirs is emphasized by the diversity of hilly landscape. Fronsac and its exceptional clay-limestone terroir gave the soil its own name: the molasse du Fronsadais , which is the pride of lots of great appellations, including the neighbouring ones of the Saint-Emilion region. The quality of the soils, regularly fed with water and experiencing no stress confers to the Fronsac and Canon Fronsac wines their richness and complexity. The temperate oceanic climate of the region, its continental characteristic with regard to the rest of the Bordeaux region and its location at the confluence of two rivers allow it to enjoy a microclimate. It promotes slow grapes’ maturating thanks to long and hot summers, warm autumns and mild and generally dry winters. Moreover, both rivers protect the vineyard from spring frost. The presence of strawberry trees and live oaks is the proof of such a privileged climate. Professor Henri ENJALBERT, a well-known geographer, considered this terroir “the historical cradle of the great Bordeaux and Libourne wines” and called it the “sacred hill of the region”.