The Collio district is a wedge at the extreme north-eastern corner of the region of Friuli Venezia Giulia, including the hills north of the province of Gorizia, up to the border with Slovenia.
The climate is gentle and temperate, because the cold wind of the North is mitigated by the Julian Alps and intertwined with the sea breezes from the nearby Adriatic: the result is a truly unique microclimate that gives the area its extraordinary vocation for wine-growing.
The Collio DOC district, with about 1500 hectares of vineyards, has come to be synonymous with outstanding wines the world over.
What makes the Collio district truly unusual is the unique composition of the subsoil (known as "ponca") characterised by the presence of a sedimentary complex particularly rich in minerals - "Flysch" - formed of deep sedimentary layers of sandstone and marls of ancient origin, dating back to the Eocene, generated by the rising ocean floor. With a very high, alkaline pH, "ponca" soil abounds in calcium carbonate, which acts as an adhesive for the sediment, primarily siliceous in nature. Once calcium carbonate is dissolved in the soil, it is easily absorbed by the roots of the grapevine, influencing the mineral content and organic qualities of the fruit, thus producing the aromatic qualities of the grape and giving the wine its flavour.
In the Collio DOC area vines are planted on gently rolling hills at altitudes of 100 to 350 metres: their excellent exposure and temperature excursions between day and night create the ideal conditions for perfect ripening of grapes with intense aromas.